How is opposing same sex marriage being handled on the federal level pushing an agenda, authoritarian, or being a nutjob?
The fact you can't see it is an answer by itself. Do you think government gives us our rights or protects them? Do you think the purpose of the Constitution is to expand freedoms or to restrict freedoms? Obviously you, like other authoritarians be they Left or Right, feel that the Feds should have the power to restrict rights. That's antithetical to what the Founders wanted. It's also authoritarian.