Time to fight, not equivocate
Historically, social movements have only created change (in either political direction) by agitating and engaging political leaders, rather than passively accepting their positions. If pushing Obama generates positive developments on gay and lesbian rights, perhaps other liberal movements will emulate glbt social movement actors and their allies and push for greater reform.
Indeed, this is one of those moments when the risks of boldness are far less than the risks of timidity. After eight years of fighting just to defend old victories against the reactionaries, it's time to start pushing forward to new ones.