What do you think it would be like to undergo a cultural religion switch?

It is already happening. Most of the western world does not believe in jesus or the bible. The middle east is seeing a great change. For sometime you can threaten people to believe in islam or the koran. But once they have tasted freedom things will change. Culturally speaking, food, dress, language, education, courtship, enemies, are all changing every day. Ask any 50 year old what was life when he was 10, and he will tell you whether culture has changed. What we are experiencing today will definitely not be there in another 30 years. Even 10 years back nobody thought the dollar will collapse. Today? The chinese have become capitalist and looking for religion. In all possibility there may be more catholics in China than in Italy.