The problem is, by insisting that the government not define marriage, it IS defining marriage. What people don’t want is that the government define marriage as between one man and one woman at a time. So they insist that the government not define it, which means that the government by default DOES define it as anything goes.Marriage is a dead institution. With divorce and serial marriage, marriage is no longer marriage, it's a cohabiting agreement.
The real key to this is to define a sane form of cohabitation and leave marriage to religious people who actually want to respect the institution.
Is that why deviants are fighting for gay marriage to be recognized? Because it's dead?
Weak argument. What you want is to water down morality so the slugs are comfy. No deal.