> It's a violation of the principles of federalism and should be smacked down

I see your point, but smacking down a state for having different principles is a violation of the principles of federalism. If federalism means anything, it includes the freedom for a state to make its own experiments in democracy as long as they don't cross enumerated federal powers.

If this bill treats people from different states differently then it is vulnerable to the commerce clause, but that isn't clearly the case.