We're losing moderates, there's no doubt about it. But we're running moderate candidates, by most measures. Candidates who likely won't seek to overturn Roe or overturn SSM. What more do social liberals want?
Even if a Republican President was "committed" to overturning Roe v. Wade or SSM (assuming the Supreme Court legalizes it across the country in June), how exactly do you expect they would be able to do such a thing in reality? There is no chance in hell that they would be able to get three fourths of state legislatures to vote to overturn the rulings, unless public opinion on both of those issues shifts in a radical manner.
