That’s the correct reading of the Establishment Clause, whattajoke. Original intent was to prohibit a national State Church. Congress shall make no law regarding an establishment of religion meant make no law.
We’ve got one now, though.
It’s atheist.
The intent was clear when you take into account the times. The head of the Church of England was the king. They didn’t want the head of state being the head of the church as well.
Atheists are a lot like liberals. They see things in the constitution that aren’t actually there.