> Religion is just as much a choice as an occupation.

That is a bit tricky.

Religion is definitely a choice if you're enough willing to make a choice, but most people just keep their parent's religion. People just believe what they were taught as children.

I'm atheist from atheist country so I don't necessarily get it, but it seems to be that way - see ratios of Muslim and Christians in Saudi Arabia versus Europe, for example.

Then there's more tricky cases where religion and ethnicity are heavily correlated or tied in even stronger way (e.g. Jews).