It's a curious fact that you always know some atheist friends who are always better than people on the forum. Not everyone is like AF, most atheists are not clones of Christopher Hitchens, I'm a live and let live (or die) kind of atheist. I only become hostile if you start promoting ridiculous ideas like that the earth is 6000 years old and child marriage is ok because it says so in Sharia.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you