Reynolds states that preserving the definition of marriage is federal jurisdiction, and that the definition cannot change. The states issue marriage licenses, but they states cannot redefine marriage just because they want it. Your ‘thesis’ is the reason why abortion is legal across america, and why we are going to see Obama enforce gay marriage too.
It didn’t define marriage. It banned polygamy. Big deal. It’s a state issue now, so you had better start fighting state to state.