Acts17apologetics try psychology; Muhammad traumatised by childhood experience?

In answer to the video "Psychology, Bias, and Transformation: Paul vs. Muhammad (PvM 12)"

The fact is that so many factors in the prophet's life went against displaying any sort of positivity and mercy that one can only conclude that he had been preserved and guided by the Almighty from turning into an evil despot; never knew his father, hardly enjoyed the compassion of his mother, lost his grandfather, and then his uncle and dearest wife simultaneously, witnessed every single one of his children die save for one, who was treated like a menace and fugitive after decades of building a flawless reputation among his people, on top of that physically abused until he would faint, starved for years by his own people, and faced countless campaigns of character assassination, directed towards him and his household, driven out of his home, unto a foreign town only to find hypocrites there awaiting every opportunity to betray him, then watching assassination attempts against his life unfold regularly, as well as the murder and mutilation of his relatives and companions.

Who could in such circumstances persevere and rise beyond negativity, displaying mercy, justice and empathy besides one divinely guided? This is why we find in this Quran, and as embodied by the prophet, that it calls Muslims to treating others, whether close or far "neighbors", from one's own people or not, as they themselves would like to be treated. It was a way of life of the prophet who taught the people the general axiom that 

"Allah will not be merciful to those who are not merciful to mankind". 

Whenever the Quran encourages fair treatment, it does so by instilling empathy

4:9"Let those who would fear for the future of their own helpless children, if they were to die, show the same concern for orphans, let them be mindful of God and speak out for justice".

That type of imaginative role-reversal is a recurrent theme 4:36,42:23,83:1-6. Treating others even better than what is expected towards one's self, opens the possibility to create a positive change even in one's enemy 41:34,59:9. This shows how altruism in the Quran, although seemingly over empathetic, actually remains pragmatic by extending fair treatment even to one's enemies in certain cases. The prophet said

"Whoever would love to be delivered from the Hellfire and entered into Paradise, then let him die with faith in Allah and the Last Day and let him treat the people the way he would love to be treated".