Apostate prophet chases Aisha; can we know her age at marriage?

In answer to the video "10 Reasons to Reject Islam"

It is well documented in the works of historians, like Tabari, that Aisha, along with all of Abu Bakr's children were born in Jahilliya (1) and this despite the fact that Tabari is aware of the 6-9 hadith as he quotes it in the same book (2). This refers in Islamic terminology to the period prior to the beginning of Muhammad's prophethood. The hijra, or migration towards Medina occured 13 years later, the same year which it is alleged that Aisha was married to the prophet, or the year after according to al-Nawawi (3).

This means there is no way possible she could have been less than 13 years old at the time of Hijra as some ahadith suggest. The proponents of Aisha's early age at the time of hijra ignore that statement of Tabari. This is significant because Tabari says that following their engagement, the prophet waited before consuming the marriage. But not because he wanted her to first reach puberty as implied in Bukhari or Muslim. It was rather due to his poor financial situation, inability to arrange a proper home for her and establish himself.

This is just one of the blatant examples of tension that exists within the hadith corpus as regards Aisha's age at the time of marriage, let alone the established marital pattern of the prophet. There perhaps exists no other topic within the sahih compilations which is at such a high level of contradictory tension with the rest of the remaining traditions. 

Another noteworthy observation in that regard is that the prophet himself denied his daughter Fatima's marriage to AbuBakr, then Umar, because she was comparatively too young to either of them (Sunan an-Nasa’i 3221). He instead married her to Ali who was 21 while it is reported that Fatima was 9. What better occasion was there for AbuBakr to mention the precedent of his own daughter marrying the prophet at 6 and expecting the prophet to reciprocate? The prophet would not have used the age argument to deny his daughter's hand to AbuBakr seeing that he married the latter's daughter at even a younger age and with an age gap exceeding that between Fatima and AbuBakr. This refusal can be understood in different ways; the age of 9 is not a benchmark for girls marriage, rather a combination of factors must be taken into account, including physical and mental readiness, which can occur at 9 or later but also compatibility in regards to personality. The other way to understand it is that the reports about Aisha's age of marriage are inaccurate.

According to a narrative in sahih Bukhari the revelation of al qamar:46 occured when Aisha was a young girl/jariya. Jariya never refers to a 4 years old. But if she was 12 then her reference as jariya by bukhari makes sense. The chapter ends a mere 9 verses later at v55 and it is obvious from the topic that v46 to v55 were revealed together and could not have been cut off. So the argument that some suras were revealed in portions with long intervals of time in between verses is moot. Besides all scholars agree this is a Meccan sura, whose finalization the opinion varies between the 4th and 8th year (4) of the call to prophethood.

But even if we consider Aisha's traditionally accepted date of birth in the 5th year of revelation as true, and in addition accept the latest estimation for the date when sura al-qamar was finalized on the 8th year of revelation as true, then this would mean Aisha was able to memorize with precision a verse and its reference when she was merely 3, which is highly unlikely. 

Other historians such as Ibn Ishaq and Ibn Hisham say she accepted Islam before Umar, who himself converted in the 9th year of revelation. These historians both say she was among the earliest converts. Ibn Ishaq places her at the 18th and ibn Hisham places her approximately at the 20th place chronologically. This takes us back during the 1st or at most the 2nd year of revelation. Aisha isnt supposed to have even been breathing at the time if she was truly born in the 5th year of revelation.

Even if we assume that this date of birth is true, how can anybody reasonably argue that someone willingly accepts a religion 3 years later at 3 years old (ie before Umar's conversion in the 9th year)?  
Aisha describes her vivid memory of events that supposedly happened when she was but an infant, such as Abu bakr's migration to Ethiopia in the 5th year of revelation, the year she was supposedly born in (5). This shows again, her birth could not have been later than the pre-islamic era, as confirmed in Tabari's reports.

As said in introduction, before her union with the prophet she was engaged to Jubayr ibn Mut'im ibn Adi. This is found, among others in Ibn saad's tabaqaat with authentic asanid. His father was a vehement enemy of the prophet, before Abu Bakr accepted Islam. The engagement was broken off by Jubayr's father when Abu Bakr converted and planned to go to Abyssinia in the 5th year of revelation, the year of Aisha's alleged birth (6). Even if we were to argue that this arrangement happened while both Aisha and Jubayr were toddlers, even infants, as would sometimes happen in ancient times among families seeking to strengthen their bonds, then this still doesnt allow for Aisha being born anytime than prior to the revelation. Mut`im bin Adi and his wife were polytheists when the engagement was made and resented the idea that their son would become Muslim if he married Aisha. Abu Bakr on the other hand was among the most zealous companions calling people towards Islam. This makes it highly unlikely that the staunch pagan Mut`m bin Adi mentioned his interest to Abu Bakr after the revelation.

She relates herself as having played an active role during the migration; getting the travelling goods together in a highly tense situation per the narrations. An 8 year old could not have acted in such a way. Again she describes herself how she reached Shajra along with the soldiers in the battle of Badr that took place in 2H. Nobody under 15 years old was allowed to join the soldiers in the battlefield. This was to avoid being captured and raised as idol-worshippers or killed and become a problem for the army. Yet she is alleged to have been 9 or 10, meaning she had absolutely no business whatsoever in being at the battlefield. But if she was born prior to the revelation, then by that time she would be around 18 years old, which makes sense. In fact there are reports of the prophet sending back some Muslim youths who tried, out of eagerness, to go along with the Muslim army.

The very notion that the Prophet would set an age limit to 15 for people to participate in battle, but allow 9-10 year olds or 11 year old females to accompany the battlefield, especially in such situations, is against all common sense. Why would young men below 15 be forbidden to be at the battle-field, but 9-10 year old girls be allowed to take care of people wounded and on the verge of death. Does one think the Prophet would have exposed these girls to the chance of being captured and eventually mistreated and abused by masters who used to force their female slaves into prostitution?
Anas further describes Aisha along with Umm Sulaim lifting their dresses up to avoid any hindrance in their movement, at the battle of Uhud. The idea of lifting the dress in Arab tradition, as is evident in abundant pre-Islamic poetry is a reference to women fleeing the battlefield, having to raise their skirts exposing their shins. This is what happened in Uhud when Muslim men were panicking, because the unbelievers had sent them into disarray. It had reached such an extent that they abandoned the Prophet.

Yet, here is a 'nine or ten year' old girl running back and forth, to various Muslim men assisting them with their needs in the midst of battle:

“On the day (of the battle) of Uhud when (some) people retreated and left the Prophet, I saw Aisha daughter of Abu Bakr and Umm Sulaim, with their robes tucked up so that the bangles around their ankles were visible hurrying with their water skins (in another narration it is said, ‘carrying the water skins on their backs’ (7). Then they would pour the water in the mouths of the people, and return to fill the water skins again and came back again to pour water in the mouths of the people”.

How can people think that at the height of the battle, when Muslims were panicking and even leaving the Prophet, Aisha was 9-11 years old, not even slightly panicking while attending bravely wounded soldiers, and was allowed to go into battle? Dont the narrations specifically tell us the Prophet constantly warned his men not to abandon their posts on the hill? If he was so keen about that matter and so keen on males being a specific age, what makes people think he was going to take females that would burden the army?

The fact is Aisha actively participated in battles during the prophet's life, assisting the men at the battlefield along with other women, which is why by the time of Ali's reign as Caliph, she gathered enough experience and credibility that she could rally a huge fighting force.