In that culture each person gets to decide whether he or she wants to respect religion for him-/herself.
Religion is a personal matter, not one the government should have any say in. Religion IS an individual matter, no matter how you or anyone else decides to spin that simple reality.
I have no idea why this isn't blazingly obvious to anyone who understands and respects what this country is and always has been.
States could and did have “official churches” in the early years, but even those could not force anybody to go.
In tying up the loose ends of a messy civil rebellion, Abraham Lincoln was responsible, wittingly or not, for a hugely unprecedented concentration of Federal power.