[hutzlibu]

Maybe (I don't know enough about your founding fathers), but humanist thinkers in europe at that time certainly had the stance of total separation from church and state. Not accommodate to any of them. Keep religion as private buisness. Not interfering with them unless total necessary.

Otherwise same rules for everyone, then you can have all the weirdest religions.

(oh and there is connection of communion and human sacrifice. In the catholic church you are eating the body of Christ. Of course metaphorical, but I think in dogma it says it actually transforms into christs body. But that's besides the point. The point is, religios freedom should not override basic laws. And if they do, but only for some religions, then they come close to being state religions)

[wanttocomment]

Those thinkers I've read (Locke, Hume, Voltaire, Descartes, Leibniz) also have nothing in mind that resembles a melting pot for the world's cultures and religions. One again the historical context is being tired of endless wars between protestants and Catholics and often being a member of a tiny minority of aetheists and deists.

The brand of humanism you are associating with is a much later development.