Libtard RATS interpret the law as freedom from Religion, not Freedom of Religion.
In the beginning, states did have laws. I know Rhode Island did. I believe that a federation of 50 states could offer a lot of religious freedom. You need an abortion? Go to MA: it's officially atheist. You don't want to run into Muslims? Go to Texas: Muslims are not allowed.
It's a matter of granularity. The Founders set up a system that could allow many choices and a great deal of freedom. Over time, the tyrants decided that one-size-fits-all was a better idea, and the one-size became: freedom from religion.
And look where we are.
Tolerance and not religion police is what the Founders advocated. Liberal fascists have decided that they rather have religious police.
It is far better just to allow freedom and have the expectation that your people can be adult and simply tolerate the expression of differences.