Then be disappointed, but don't try to leverage it into being the balance his whole presidency is judged on. Liberals aren't fighting a one-front war, my judgement of the Prez is over that entire theater of operations.
Look, I've praised the President on any number of issues (e.g., the economy, judges, ISIS, his attack in Syria, etc.), but if the President of the United States has apparently completely abandoned YOUR number one priority -- be it, abortion, immigration, political correctness, culture wars, or fiscal responsibility, I can't think of a better issue for ANYONE to judge the balance of his presidency than on THEIR number one priority issue. Having said that, I wouldn't dictate how anyone should evaluate a President's performance. I think that's an individual choice using individual criteria.