That is the whole foundation for your argument, and it's wrong.
The first amendment does not provide for any such "separation" of religion and govt. The amendment clearly states that "Congress shall make no law regarding an establishment of religion. the word "an" presupposes existing religious 'establishment(s)' In addition, if you read the Federalist Papers and other documents related to the Founders, you can see plainly that it was never the intention to separate govt and religion, it was only to provide that "Congress shall make no law..." regarding religious activities, and that our govt was never to recognize or form a state run religion as was prevalent in England at that time.
"Separation" of church and "state" is a mythical interpretation of the plain English of the Constitution, foisted on the citizens by Godless, socilalist liars
One of Jefferson's proudest achievements was the Virginia Statute on Religious Freedom. Here's a link comparing his bill with that enacted.
To me it seems very clear that in order to protect the freedom to worship as one wishes, it's essential the government neither make laws establishing a religion, or make laws about "an establishment" of religion. In the latter, I read it as make no laws about a church or method of worship.
You'll note in the Statute on Religious Freedom the comments about forcing someone to pay for a belief he does not espouse. That clearly seems to refer to acts of government.
Is Jefferson one of the "Godless, socilalist liars" you're talking about?