I say as long as it's two consenting adults, the marriage should be recognized. However, I get why people would support same-sex marriage, but not incestuous marriage. Incest babies have a higher chance of being born with disabilities.
Who mentioned babies? Are you saying that one should be married before having children?
Look at all the bastard babies, especially among blacks, running around. They have a higher chance of living in poverty, committing crimes, and having future bastard babies. Why don't you oppose that?