Why are you atheists not outraged at the Muslim prayer in the Oklahoma capital building? Where is your faux outrage at the Muslims? ...
Not to speak for the atheists (strident pantheist here), but from what I've seen over the years (especially post-9/11), about the only people more demonized by Christians than atheists...are Muslims. So, maybe there's a basis for some degree of empathy between atheists and Muslims.
There's also the fact, that at least here in the US, Christianity in its various forms has traditionally held a great deal of political sway over the nation's lawmakers, which has resulted in the promotion of certain 'Christian values' in the legislative arena (always carefully designed to worm out of the intrinsic unconstitutionality of such legal influence, of course), so there's good reason for atheists and other groups to see the Christian Faith as more threatening to a
free and open society than any other relgious faction in the United States.
For the most part though, of all the so-called 'strong atheists' I've personally interacted with, their enmity for "religious nuts" has extended to people of all faiths (myself included).