I'm an Obama supporter who respects no religion. I daresay neither myself nor Bill Maher are the only ones in that. The difference between atheists who respect no religion and people who make films based on the myths of one segment of religion to denigrate another is that atheists don't subscribe to the mythologies (lies) that religions proclaim against other religions, and prefer truth to lies told by religions.
You'll discover that among the prolific lies that Christians and Jews tell about Muslims, this atheist will defend Muslims because a lie is a lie is a lie is a lie.