It really doesn't matter very much what opinion the President has of the electoral college, the President doesn't have much say in the matter. Perhaps the President could use their position to push for change, but that would be the extent of it.

I'm aware that it would require a constitutional amendment to get rid of it. Was just taking an easy jab at his absolutely blatant hypocrisy between 2012 and 2016.

An alternative might be a collection of states banding together to solve how they send members to the electoral college. "First past the post" versus "representative" (versus fancier, better options, like run-off voting) is a state's right under the constitution.

Current first-past-the-post states are incentivized under the current regime to stay that way because it makes for more opportunity to be treated as a "ballroom belle" ("swing state") each election cycle, which brings money and attention to the state it might not ever see otherwise.

It's possible, though sadly unlikely, you could fix the current regime by fixing things from the bottom up at the state legislature level, one state at a time if need be.