non sequitor

I heard this, or something very close to it, just yesterday from a celebrity who I consider quite intelligent: "I don't believe in God because of all the bad things done in his name."

It's an old argument, but it's an ad hominem one, and it's logical nonsense. Replace "God" with any random noun to see how silly it is. "I don't believe in sex because of all the bad things done for it." "I don't believe in chocolate because of all the colonialism and exploitation that goes with it." Please! If you're going to argue that atheism is more rational than religion, then at least come up with a rational argument.