Given the fact that Americans were so obsessed with religion it's probably necessary for any politician to pretend to be religious it doesn't mean they actually are.

They're not wrong. The new testament is pretty unambiguous on what Jesus was about, and their religion is named after the guy.

Teacher, which is the great commandment in the Law?” And he said to him, “You shall love the Lord your God with all your heart and with all your soul and with all your mind. This is the great and first commandment. And a second is like it: You shall love your neighbor as yourself. On these two commandments depend all the Law and the Prophets.”

The peacenik that willingly sacrificed himself to save people. Someone that repeatedly preached tolerance, kindness to strangers, and that greed is evil. So I have absolutely no problem calling people that don't subscribe to their guy's teachings fake or hypocrites -- especially when there's examples of people that do follow that creed. E.g. Bob Ross, Fred Rogers, Dolly Parton, etc.