Apostate prophet sees the light; Islamic golden rule?

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

The Quran, as shown from many examples previously, takes the principle of the "golden rule" to new heights and should be labelled the "diamond rule". Slaves were an integral part of the household to such an extent that, as with other members of the biological family, women were allowed to unveil in their presence 24:31. This of course was a ruling of conveniency, given the frequent interraction with the male servants going about their various assisting tasks within the household. But it further contributed to their thorough integration within the family sphere, solidifying the various rulings of consideration towards them.
They had to be fed and maintained without any psychological injury and for the sake of Allah, not seeking benefits of any kind from them in return

76:8-10"And they give food however great be their own want of it to the poor and the orphan and the captive: We only feed you for Allah's sake; we desire from you neither reward nor thanks: Surely we fear from our Lord a stern, distressful day. So God will save them from the woes of that day, and give them radiance and gladness. So God will save them from the woes of that day, and give them radiance and gladness".

What is remarkable here is that the Quran places even the need of the captive, regardless of his religion, above the need of the Muslim guardian himself. This is just one of the many passages that further dwarfs the judeo-christian notion of the golden rule.

So, even though the Quran does not pronounce an abstract concept like to “love your neighbour”, it does however articulate its reality and applications in a much more comprehensive manner, constantly interlinking worship of God with application of social justice.  

In a hadith, the prophet describes how the angel Jibril admonished him for the sake of the neighbours 

"Mujahid reported that a sheep was slaughtered for 'Abdullah ibn 'Amr. He asked his slave, "Have you given any to our Jewish neighbour? Have you given any to our Jewish neighbour? I heard the Messenger of Allah, may Allah bless him and grant him peace, say, 'Jibril kept on recommending that I treat my neighbours well until I thought that he would order me to treat them as my heirs.'"

Reciprocity in goodwill is so hardwired into the Quranic message that even when people meet and greet oneanother, the one answering should exceed the other in his greeting 

4:86"When a greeting is offered you, answer it with an even better greeting, or [at least] with its like. God keeps count of all things". 

The Islamic greeting is a supplication to Allah, that He might bestow peace on another. This known etiquette, which is a Muslim peculiarity, is a means by which people’s hearts are cleansed. It brings people closer together and reinforces their ties. Further, it is indiscriminate; regardless of who the one originating the salutation, one should answer in kind, with even a recommendation to sometimes precede the ignorant in wishing him peace 25:63,28:55,43:89.

The Prophet never punished out of mere retaliation for a personal slight or injury. All his punishments, of believers and unbelievers alike, were for crimes committed against the public weal or infringements of the promulgated law; and even here his life contains acts of clemency in which he put mercy above justice. In 4:140 it says

"And indeed He has revealed to you in the Book that when you hear Allah's communications disbelieved in and mocked at do not sit with them until they enter into some other discourse; surely then you would be like them; surely Allah will gather together the hypocrites and the unbelievers all in hell".

This is a Medinan verse in which the prophet isnt told to forcefully silence the critics, even those mockers of the religion. He is simply to gracefully turn away from them and leave them to their own shamefull talk. A similar verse was revealed in Mecca 6:68.