Dawkins is just fighting back, as is his right. As others have said, he is scathing in his attacks on religion, but then again religion is fairly strident in its attempts to proselytise, twist or carefully select the words printed in their various "holy" books and generally heap scorn on anyone who disagrees with their take on their particular god.
I must admit I've become more of a pro-active atheist since the political party Family First (basically the political wing of the Pentecostal Assemblies of God church here in Australia) has started putting its nose into politics. 12 years of C of E indoctrination has given me the ammunition needed to discuss at least Christianity with their dullards who show up at shopping centres when an election looms, and every minute I spend refuting their ill-founded delusional dogma is a minute they don't get to spend trying to turn someone else to the dark side. I'm sure that grates with many people, but given how the christian fundamentalists taliban has have managed to have so much political power in the USA I think it's fair enough to fight back to keep religion out of politics in my country wherever possible.
Passports not in the drawer I always keep them in. Turning the place upside down.
Being quizzed by chemist's assistant in Boots.