For some the vote was simply an expression of their hatred for centrist/liberal/media elites and pundit class who look down on them. If you look at polls, lots of Trump supporters voted for him because of political correctness. If you listen to them, you hear about gleefully reveling in "liberal tears". Plenty of people voted for him exactly because him winning hurt people they hate and really little else beyond that.

And I think you underestimate the pure hatred for Hillary Clinton. Far more voted against her than for him. When your life is miserable and your community is dying and a rich lady you've hated for decades tells you "America is already great" (this was actually her slogan!), well....

Imagine being a truck driver and watching this.

https://www.youtube.com/watch?v=YttscNOoAjA

Finally, at the end of the day your rank and file republicans are just going to go to the polls and check the box next to 'R' like they always do, no matter what. Religious republicans will say a prayer when they do it, poor ones will convince themselves he'll help them, moderate ones will convince themselves Hillary is worse. You'd sooner convert one of them than convince a lifelong fan to change their favorite sports team. Similar with democrats.