Let Them Be
And here's one to make most gay rights supporters annoyed at me. I think it would be nice if eHarmony voluntarily offered its services to homosexuals, but forcing them to is an assault on rights. The right of free association also means the right to not associate. You have the right to not associate with someone for whatever reason, whether that's because that person is mean, dumb, a criminal, or for bad reasons like that they're gay. The right to be an asshole is one of our fundamental rights. Feel free to criticize people for being assholes, but if you use force to change their behavior, you're the asshole.