That's correct, the law doesn't discriminate based on what you do or don't do with your genitals.
A lot of homosexuals are in marriages of convenience. They do so to get the benefits that a heterosexual person can or to hide their proclivities from others. I find that more repugnant than two homosexuals in a committed relationship.
So what? You get a majority of people in your state to agree with you and you can assuage your problem of finding something repugnant.
Shouldn't society promote stable, loving families?
Society does promote stable, loving families and the institution they have chosen to do that with is heterosexual marraige.
Doesn't that benefit us all?
Heterosexual marriage? Yes, all the data suggests that children benefit most when raised by Mom and Dad.
What I do believe is that the furor over gay rights, the marches in the streets, the screaming and yelling that tends to make this issue stand out in society, will die down. I believe that promiscuous, homosexual sex will lessen. I believe that a stable, gay couple living next door to me is preferable to a dysfunctional abusive couple. And I believe that this society should not give preferential treatment to heterosexuals just because they are heterosexual. Someone earlier in the thread said gays will want "special status" and "preferential treatment" if gay unions are recognized. I think that this is 180 degrees out. I believe that we will stop the uproar, and then we can all get down to just living our lives.