I've been in favor of legalizing same-sex marriage since shortly after heteroracial ones were permitted, but now my support is suspect because I represent the abomination for which same-sex marriage is the innocent stalking horse: recognition of n>2 marriages, such as the loving, committed one womzilla, nellorat, and I have had for more than 20 years. Of course, there will be a whole new set of problems. For instance, we can't have it in the US until we have a single-payer health care system like the First World has because there are already more than enough people getting married for health coverage. Still, I believe we're getting there. An argument for it.