However, you seem to want to disbelieve him uncritically, and that's your prerogative.
Consider this article: http://www.bbc.co.uk/news/magazine-15095191
That, to me, seems a more balanced position, and a more credible source.
In short, I'd like to believe the things he's saying, I'm predisposed to believe the things he's saying, but I've gone out and looked for more evidence. In the end, I think his position is too extreme, and no matter how tempting, I don't believe it without further evidence.
And I've seen no evidence that he's qualified.