Everyone knows the federal government has no power over marriage. That’s why an amendment is needed. Why a libertarian would oppose an amendment which would restrict the government’s power is obvious. It’s because you are determined to use the violent power of big government to wage a culture war against the “religious right” you hate so much. Game on.
I haven’t expressed any opposition to such an amendment, and I’d probably support it. I took exception to the proposition that we can simply ignore the Constitution and have Congress pass a law against it, knowing their authority in the matter is questionable at best.