I am the mother of a gay son and I am a Republican. To me gay marriage like heterosexual marriage represents the best of what Republicans stand for: Love, honor, commitment, monogamy, becoming a stronger unit together than a part. Having gay marriage legal is about equality for individuals, regardless of sexual orientation. Gay couples strive for the same things we all do. Love is love; commitment is commitment these things care not of gender. Neither should we.
Regardless of how you feel about marriage as a religious construct, civil marriage is a right that should not be taken away from any Californian.