Mike Huckabee responded to the Supreme Court’s ruling on marriage with this gem; he said, “The Supreme Court can no more repeal the laws of nature and nature’s God on marriage than it can the law of gravity.”
Whether you believe in a creator or not, it is fantastical to equate the laws of physics with an institution that serves humans.
If I recall correctly, podcaster Dan Carlin, has actually made the point that the idea of gay marriage should be irrelevant because he does not believe that marriage should be a government institution. If anything, he has argued, governments should provide a notary public to protect legal rights of a couple but that marriage should not be its business.
But, as long as marriage is a governmental institution for heterosexuals, homosexuals should be entitled to it. The worst and the best heterosexual marriages do not impact my own, so why would a homosexual marriage impact it?
Love is love.