"celebrated for his strident opinions on the Christian and Jewish Gods" I think you nailed it on the head there. Dawkins doesn't delve into Islam much. And you

"celebrated for his strident opinions on the Christian and Jewish Gods" I think you nailed it on the head there. Dawkins doesn't delve into Islam much. And you're right it's probably a survival instinct. Christianity and Judaism are fully established in the western world, they are open to debate. Islam on the other hand is much more difficult to openly debate because internationally it is a religion embroiled in very delicate politics and the cause of many an aggressive reaction. Those reactions aren't unique to Islam, Christianity and Judaism have had their fair share of such things in the past, and still have the odd one today. I'm sure Dawkins does know a lot about the Quran though, and I'm sure he'd like to pipe up, but not enough of Islam is mature enough yet to handle a constructive debate. Not that Dawkins is constructive 100% of the time himself.