What I'm saying is that in the context of having religious extremists do all sorts of raping and murdering (of nonbelievers), advancing a pro-religion argument with this sort of thought experiment is really stupid.

Then there's the usual sentiment that the belief in God keeps people from raping and murdering, and it is just empirically false. You can even believe in God and be a total moral nihilist all the same (accept the Jesus and go to heaven no matter what).