dontconvert2islam tries talking hadith, kill whoever changes his religion?

In answer to the video "Islamic Fire Torture"

There is nothing in the Quran nor the prophet's life that even remotely endorses the notion of killing an individual solely for his choice of creed.

On the other hand, both from the Quran and hadith, we see examples of people left unbothered after leaving Islam in peace, not seeking to harm the early Muslim community.

It is with such historical and Quranic perspective that the killing of apostates as reported in the history and hadith books should be understood, spiritual apostasy was never the sole charge warranting the death penalty, but rather political apostasy ie socio-political destabilization and conspiracies to commit bloodshed, especially in times of war or other sort of trials that caused the early Muslims to be on high alert against those who wished to overthrown the system.

In addition, some among the early Muslims' enemies pretended converting in attempts to infiltrate the community and harm it through inciting sedition and providing vital information in times of war 3:72,33:60. All governments would punish and sometimes execute foreign spies, double agents, or traitors to an enemy with whom one is at war. These are the people covered in the saying

"The one who leaves his religion AND SEPERATES from the community, kill him".

This clearly puts 2 condition for the execution of an individual in war times, leaving the religion combined with separation from the community to join the enemy. Leaving the religion while remaining a full fledged citizen with his rights and obligations does not warrant the death penalty. This openly declared threat would make the conspirators think twice before engaging in their insidious behavior. All scholars have understood that leaving Islam must be coupled with a will to harm it and its people, to warrant the death penalty. Ibn Taymiyah said

"Muhaarabah (waging war against Islam) is of two types: physical and verbal. Waging war verbally against Islam may be worse than waging war physically – as stated above – hence the Prophet (peace and blessings of Allaah be upon him) used to kill those who waged war against Islam verbally, whilst letting off some of those who waged war against Islam physically. This ruling is to be applied more strictly after the death of the Prophet (peace and blessings of Allaah be upon him). Mischief may be caused by physical action or by words, but the damage caused by words is many times greater than that caused by physical action; and the goodness achieved by words in reforming may be many times greater than that achieved by physical action. It is proven that waging war against Allaah and His Messenger (peace and blessings of Allaah be upon him) verbally is worse and the efforts on earth to undermine religion by verbal means is more effective".

 Another typical example is that of Abdullah Ibn Sad Ibn Abi Sarh who had converted then apostised, joined the enemy side and began undermining the authenticity of the Quran by spreading rumors that he had been forging verses. He in addition incited the opposite party to war. When the Muslim side finally overcame against all odds and his own inciting efforts, his inevitable, legitimate fate was now execution for high treason.

This is what governments generally do once a traitor is apprehended, especially when a conflict ends while the person is still among enemy ranks. At that point, ibn Abi Sarh sought Uthman's intercession and came to the prophet to pledge his allegiance. The prophet ignored Uthman's plea twice before finally accepting. The prophet knew that he deserved to be put to death but at the same time, because of the general amnesty he had declared upon Mecca's conquest, he hesitated in the case of Sarh' special case, leaning more towards the capital penalty. By his silence, he left it to the attendance of close followers to do as they liked and as he saw that they leaned the opposite way, he reluctantly validated their judgement and accepted Sarh's pledge. 

However and as already shown from the Quran, should one leave Islam peacefully without intending any harm to the community, not combining apostasy with public rejection of the state system, which includes refusal to acquit oneself from fiscal obligations, then the consequences of the sin are left for the Creator to decide in the Hereafter. A case in point is that of a bedouin that apostised though he had accepted Islam, pledging allegiance in front of the prophet the day before. The prophet did not punish him, the most that he did was to ignore him 3 times before stating

"Medina is like a furnace. It expels its impurities and collects what is pure".

The early caliphs followed the same line. Umar Ibn Abdul Aziz did not bother a group of apostates so long as they did not rebel against government laws. It is thus rejection of the religion in a way that threatens the stability of the Islamic system in place that warrants death penalty. These were the cases covered by the prophet's saying

"Whosoever changed his Islamic religion, then kill him".

In fact there are explicit reports where the prophet let people leave the community in security following their spiritual apostasy.

Once more, there is no compulsion in religion 2:256,18:29 so no punitive measure can be directed at an apostate neither can he be compelled to go back to Islam or forced to repent solely on the basis of his choice of creed. Per the Quran and as made clear in 4:88-90 quoted earlier, action is to be undertaken against an apostate when he engages in hostile behavior towards Muslims and the Muslim state. Fighting, punishing or killing an apostate has therefore nothing to do with a person's choice of creed but with his behavior towards the Muslims.