Electors should not unify behind a generic off ballot Republican,
He is not a generic off ballot Republican, he won the contest according to the rules, now emotionally brittle Liberals want to suddenly change the rules when their guy did not win, typical Liberal mindset.
but for the other candidate who’s the choice of a majority of voters.
Nobody was campaigning for the popular vote, it is easy to win something nobody was actually trying to win. The vast majority of that extra was from California, so a large population center should dictate to all other States in the Union?
Here is the problem in a way you may be better able to understand.
You are demanding we select a winner of a football game based on how many fans were in the stadium, not on who scored the most points on the playing field.
Hillary and Trump both knew the rules of the game and how it is played, they expended their resources and time in places to win the contest based on the established rules. If you wanted a “popular vote” then the candidates expend their time and resources differently. The results would have been the same.