"I disagree with the legal principle of incorporation which makes the Constitution apply to states. I don’t believe a state has to guarantee religious liberty, or any other kind of liberty, just because the Constitution of the US says so. The US Constitution should apply to the federal government alone."So, for example if the state's majority decided they wanted a Judenrein state, they ought to be able to implement it?
No - who cares what the majority thinks?
A supermajority on the other hand should be able to do anything it wants.
Roman Catholic priests were banned in Massachusetts hundreds of years ago. Over time, common sense prevailed and the ban was lifted. It is typical of liberals (not that I am calling you one) to think that a government law is required to get a desired outcome. No federal government law was actually needed to remove this ban (from what I know).
Over time, common sense would continue to prevail and federalism would work as the founders intended. Bad policies by states take care of themselves eventually.