Well, Tom had to say that because that's his religion and people aren't allowed to go against their religion.
"Aren't allowed"? That doesn't sound like a religion. That sounds like a cult. Tom Cruise, is a mediocre actor with an over opinionated idea of himself and an arrogant view of all.
Scientology is not Christain so it's not the same kind of thing. Myabe people don't like religion but it's as unfair to lump them together as it is to force one on a person.