Actually, Dawkins has trashed Islam.
See http://www.youtube.com/watch?v=K1b0QKO1rJQ where he takes on an Islamic cleric.
In this one, Dawkins calls Islam as evil!
http://www.youtube.com/watch?v=Qhp5ktBSsu8
Does Dawkins have any manners? He keeps trying to talk down the cleric who is speaking and behaving a calm, collected and civilized manner.
In this one, Dawkins calls Islam as evil!
In Dawkins' view, Islam is just evil. Clearly, that is not as evil as he thinks the Catholic Church is, as he says the latter is the greatest evil. Notice the cowardice and trepidation in his voice as he gingerly expresses concern over Islam. That's nothing like his screed against Christians.
In this view I say Christianity needs to learn a thing or three from Islam, and stop taking it on the chin from cretins like Dawkins.
And if some people think that is somehow "un-Christian," keep in mind it was this attitude that helped Christianity beat back Islam during the Crusades. Jesus Himself warned His disciples that they would need to use force to defend the faith.