The problem is that the atheists are also very violent. There the communist antifa, who are mostly atheist as far as I can tell. Then there are the marxist types pictured in the meme whose violence is to use the government to steal from everyone via taxes. And, the meme also ignores the violence that is occurring inside the abortion clinic.
The problem with your statement is that although all Communists are Atheists...no all Atheists are communists. See, the fanaticism makes the difference.
Of course, I'm just saying that there is a lot of violence in the category of people called atheists. I'm atheist and like to think I'm not violent, same for you I'm sure. Not the same for all those on this site as they are happy to steal from me via government violence. I'm just saying I don't like this meme, that's all. I think the point it is trying to illustrate is false (which seems to be that god leads to violence but atheism is peaceful).