He echos my thoughts on the matter, that more love in the world is a good thing and that gay marriage doesn't detract from the sanctity of heterosexual marriage. He brings up the marriages that do, those that are gone into foolishly, without love, without trust, with one or both people involved knowing it's a sham.
He mentions the collateral damage of these marriages, damage that could have been avoided if only we allowed people to live their honestly and marry those they really care about.
So check it out. And think if you weren't allowed to marry the person you loved.