Freedom from the demands of religion tends to only really evolve in the context of freedom of religion, at the edges that form where people are practicing different religions that have conflicting access needs.

It’s similar to how accessibility measures get implemented: you need a vocal group that’s disparately affected, and who needs the change in order to function properly, before anyone will bother to change how they do things. You need a “lobby.”

Religious freedom is an accessibility need where “functioning properly” means “being able to adhere to the tenets of their own religious beliefs.” So the friction responsible for change only comes up where you have a “lobby” of people of another religion, where that other religion has a conflicting requirement.