How so?
If you can't see it innately, there's nothing I can say to convince you.
Read the 1st Amendment to the Constitution and get back to me.
It has to do with "The Free exercise thereof".
The Federal Government and the Bill of Rights guarantee such rights to all citizens, even against States Rights.
Cain is a dunce, and if you believe ;his tripe on this matter, you are too...or you are a statist that would regulate religion.