This is a very thorny issue, but if there is anything that I am certain of it is that none (not one) of our founding fathers believed that public officials and public employees are empowered by the First Amendment to write their own job descriptions. They believed that public officials/employees are public servants and are obliged to perform the functions that they are retained to perform. If a public official or a public employee chooses a religion that does not permit them to perform their public functions, then they need to find another job. If I was a public employees and I was asked to perform a function that conflicted with my religion, I would have the dignity to resign.
I have a feeling that you would feel differently in a case where a public school teacher believed, for religious reasons, that the body is some kind of a spiritual temple and that schoolchildren should be encouraged to be naked in the classroom. I suspect that in that case you would tell the teacher to either quit or comply with the rules that the school has set for child safety no matter what the teacher's religion might teach. Public employees and public officials have to comply with the law like everyone else. They can't use their religious beliefs to write their own job descriptions.
Show me where the founding fathers made such statements in writing. You can search the Constitution, Federalist Papers, or any writings of the founding fathers to make your case.
I will remind you though, that this country was founded on FREEDOM OF RELIGION, and the practice thereof. That is absolutely clear, an irrefutable. They place no limits anywhere on the practice of one's religion.
The limit is on the GOVERNMENT to prevent it from infringing on, interfering with, or endorsing one religion over another.