There are two kinds of voters: those who vote for persons and those who vote for platforms.
The reason why Trump lost is this: more people voted for a person rather than a platform.In
this video which one of my parishioners actually sent me, there are only a few reasons that were Trump specific, and even then, they were things that you could probably associate with ANY run-of-the-mill Republican. So it seems clear that within the GOP there was a contingent that was voting Trump simply because he was a Republican. For the people who were voting for Trump because of who he is, which we might call his base, they thoroughly enjoyed his cavalier attitude, antics, rants, and back-talk to the liberal elite and media. It seems clear now that in a national contest in which we are comparing one person to the other, it was Trump's election to lose. He could've acted more presidential when he took office, but he didn't. It seems people actually care about presidents acting presidential, and so I submit that virtually any career Democrat could've beaten Trump simply by presenting themselves more presidential, which was easy given how low Trump lowered the bar.