The national catholic register, hell of a source right there for this subject. and the author of this article is a stage magician in the catholic magician's guild. you cant make this sh8t up. Lets dig in.
Did you even read it? the article states communism is a religion. it also implies that there is an allegation that all negative actions of all theists reflect on all theists. Which is patently stupid and untrue, and completely not what I said at all. so the first two paragraphs are hogwash. Should i continue? I doubt you read this far.
Okay i went on, man am I dumb. "we can condemn all atheists and atheism simply by examining the one million dead at the hands of "rational," "enlightened" atheist French Revolutionaries." Really, all atheists are condemned now? I never even went so far as to condemn all theists with my statements.
so the best evidence you have regarding atheist violence against theists is the opposition of the roman catholic church during the french revolution. Seems rather isolated in in history, but hey, i'll give it to you if you really want it. But if you ask me, the author should stick with his magic act.
I do wonder though how many instances could you bring up of violence in the name of atheism compared to how many I can bring up in the name of theism or some religion or some god/deity. Which one of us would run out first?