I'm sick of people thinking religion is even an important question.
It doesn't fucking matter what religion someone is. It doesn't even matter whether they find justification for what they're doing in religion. What matters is what they do.
I would count it as real progress in the world if we didn't even know how many muslims, how many christians, how many atheists, etc, because everybody understood that the question was too darn trivial to even bother asking.
I really agree with this sentiment, but for as trivial we may find religion, we have to acknowledge the reality that religion is a guiding force in the daily lives of much of this world's inhabitants. In essence, you have identified the chief problem: some of us saying only actions matter, some of us saying that actions can have religious justifications. In the minds of the people who are guided by religion, you can't convince them their actions are wrong where they believe they have a religious justification to act a certain way.