Prophets words were misrepresented.

 If  what I read is true the Prophet Mohammad married a 6 year old and had sex with her at   the age of 8 in the west this would be paedophiliae, according to things I have read non Muslim women and children can be used as sex slaves, women are treated as second class citizens and can be beaten, Homosexuals should be killed, captured enemy soldiers beheaded, those Muslim leaving the religion should be killed, couples having sex before marriage should be stoned to death plus much  more barbaric things.

Now I have seen all these things on social media being associated with Islam BUT I can not believe a prophet of God being responsible for these atrocities But after watching a video the link is below I can understand what has happened. According to the video nothing was written about Mohammad for 200 to 300 years after his death so those that wrote the Quran never even met the Prophet. You note I use the word Prophet because I have no doubt their was a man called Mohammad who preached the word of God BUT according to the Video he did not write the Quran.

So his ideas and indicts were handed down verbally so his message could easily have been mistaken i.e. Chinese whisper. Like other religions evil men could use the religion they support to gain power and influence for themselves and with Islam if it is true that it was over 200 years since anything was written it would make sense that the Prophets words were misrepresented. I hope that is true because there are many millions of Muslims who want to live in peace with everyone.
Yet according to Wikipedia the following has been said "According to the traditional narrative, several companions of Muhammad served as scribes and were responsible for writing down the revelations.^[13] Shortly after Muhammad's death, the Quran was compiled by his companions who wrote down and memorized parts of it.^[14] These codices had differences that motivated the Caliph Uthman to establish a standard version now known as Uthman's codex, which is generally considered the archetype of the Quran known today. There are, however, variant readings, with mostly minor differences in meaning.^[13]

If this video is wrong which it could be please let us know and before all you Lefties start saying this anti Islam NO it is not I am just asking answers or clarification hopefully a Muslim Scholar will read this and give me answers, because the establishment is burying its head in the sand over the issue of Islam