Can’t really agree with you there. I’ve never read Dawkins’ book (and don’t intend to), and I’ve only heard him speak once. He seemed reasonably intelligent and pretty much sane. But overall, I withhold judgment.
On the other hand, I think Robertson is probably certifiable. I’ve read one of his books and watched his TV show easily a dozen times, probably more, and while I would agree that he’s mostly harmless in the sense that nobody with an IQ of more than 80 could possibly take him seriously, he strikes me as having some pretty serious mental problems.
I’m not sure Robertson believes what he says anyway; he’s just in it for the money, like everyone else. I have no intention of reading Dawkins either.