It’s always been recognized that Bill Clinton won both times with only a plurality. The point the left is trying to make with the ‘popular vote’ argument is that she received more votes than Trump.
However that is winning at a game neither was playing. They were both playing for EVs, not popular votes. DJT never held a rally in CA because he wouldn’t win the state’s EVs. Had the contest been for popularl votes, Republican-oriented/conservative voters might have bothered to come out but they know in CA with the EV system their votes doesn’t count.
It’s important to push back with the point that more people didn’t want her than wanted her.