Constitution sets limits on powers of government

The U.S. Constitution only grants the Federal government to make laws in 7 areas that supersede State Rights:

1. National Defense
2. Immigration
3. Issuing currency
4. Raising revenue to operate national government
5. Foreign relations
6. Resolving conflicts between states
7. Few others

The 10th amendment is worded to reserve all other decisions to the states or to the people:

"The powers not delegated to the U.S. by the Constitution nor prohibited by it to the state, are reserved to the states respectively, or to the people.

Any laws that are not regarding the above mentioned are unconstitutional and subject to such a finding by any court, especially the U.S. Supreme Court.