There's plenty enough bad about religion to focus on without trying to trash all of it at once which simply won't work. Focus on the abusive behavior and child mutilation
It takes all kinds. Some people can be persuaded away from their harmful beliefs and practices by being shown that they aren't necessary to give their lives meaning, and some people can be persuaded that their lives can be endowed with meaning another way once they realize that the current source of meaning stems from fundamentally harmful beliefs and practices. Saying that one shouldn't make a point that favors a lack of belief in a deity because it's somehow the wrong way to talk people out of their belief is, in my opinion, a completely indefensible position to take.
I agree that we should let people have their privately held superstitions as long as they don't impose them on others, but I fail to see how pointing out just how unnecessary those superstitions are will somehow weaken the case against belief without evidence.