Freedom of religion as the Founders understood it is a principle that can be applied to any population.
If our founding documents were to be interpreted entirely within the temporal context of the founders lives, then wed have to give some credence to liberal arguments about, say, the 2nd amendment and muzzleloaders.
Our founding documents are based upon universal principles, not circumstances or situations.
Moral relativism is destructive to civilized cultures and societies. That is deception communists promote to divide and conquer us. The following, on the other hand, is what our founders believed:
“With slight shades of difference, you have the same religion, manners, habits, and political principles.” [George Washington, “Farewell Address.” 1796]
It is also worthwhile to note that one of the first acts of business by the FIRST congress was to establish the offices of PROTESTANT chaplains for the senate and house. It is also important to understand that ONLY the congress was restricted from respecting the establishment of religion. States were not, and several incorporated Protestant religious tests for public office.
Widening or generalizing the original FF’s intents has resulted in our nation’s current decadent decay.