Actually he raised some valid points against Islam. A few examples:

1. Islam teaches polygamy. In fact the Koran is a text based entirely on this immoral doctine of men having multiple wives. Muhammad for example had 11 wives.
2. Islam teaches sexual immorality. The Koran states Muhammad had sexual intercourse with over 20 woman (including women outside his marriages, including several of his owned female slaves).
3. Islam teaches child marriage (sick). Muhammad married Aisha when she was six years old. The Hadith, explains that he had slept with Aisha while she had childrens ''dolls'' in her bed.

None of these facts are distortions from ''anti-Islam websites'', all these things you can read in the Koran and Hadith. Also the usual liberal argument ''well all religions teach the same thing'' is a fallacy here. The Bible is strongly against polygamy (and those that practiced it were punished i.e King Solomon), is against sexual immorality (it promotes no sex outside marriage) and thirdly is certianly against underage marriage or any other as disgusting things.