Some of the most successful partnerships I know are gay couples. In fact they have been more successful at it than both myself and my parents!
California is still battling this dumb, dumb proposition. It doesn't matter what parts you have in your pants. If you love someone you should be able to marry them and have the equal rights that our country was founded on as in: "All men are created equal" [the color of your skin nor the person you love should determine these rights]