One big supposition you’ll see by faith haters challenged this way is that atheist inquisitions only took a larger toll because they had more efficient weapons, and surely if the tables were turned, faith would carry on worse massacres...
But that’s at best to take the most fanatical sect and project their mindset onto everyone else. He can’t be ignorant, can he, that there are people who disagree with Jim Jones and with the Taliban etc? In fact that they are the vast majority?
There is no reason for his ignorance, so it must be a blindness that comes from his rejection of, even hatred for the source of truth. Satan is a liar and deceiver, and whether he knows it or not, Dawkins worships at his alter. He is, therefore, easily deceived into believing the most foolish ideas.