So at the end of the day, who cares what someone else believes to cope with that?

I care as soon as religion causes suffering. Which was and still is the case. (Sorry, have to say it again.)

but at the end of the day bad shit just happens and we should do our best to stop it, regardless of whos fault it is.

Agreed.

Athiests claim to not believe in a god but then blame a god for when bad things happen

Personally, I can imagine that’s frustration coming from people who may have been raised in a religious household. But I can’t speak for all. Haven’t heard from such a phenomenon though.