People think we atheists pick on Christians too much, but tend to shy away from picking on Muslims. Actually, just about everything we object to, while often directed to some inanity of Christianity, could be easily extrapolated to any religion, because it’s theism that atheists don’t buy into. Christianity is just the most pervasive form of theism on the planet, and a known target. In addition most atheists, if they were once part of a theistic community, were probably Christians, or at least live in a predominately Christian area. There are not a lot of formerly Islamic atheists out there. At least there are not many talking about it, even if they exist.