How's that for a radical notion? How does this work, you ask?
1. More gays and lesbians will be able to get married and enjoy the benefits thereof, including improved stability, health, and being able to properly care for their significant others. If people getting married benefits social stability as the fundies seem to argue, more marriages among more people means better social stability, right?
2. Gays and lesbians would have MUCH more freedom to be themselves. No more need for lying, distrust, deception in relationships. Gays and lesbians will be able to get married to their ideal (same-sex) partner instead of feeling the need to enter (sham) heterosexual marriages in order to maintain social acceptability, have children, etc., leaving fewer couples and their families traumatized by painful divorces after couples recognize futility of trying to make a mixed-orientation situation work. Instead, Gays and lesbians can focus on finding their ideal SAME-SEX partners and leave heterosexual men and women to pursue their own ideal OPPOSITE-SEX partners, which should, in theory, make everybody happier, right?
These were the first two things that popped into my head while thinking about this. Everybody here can feel free to add on to this list.