Sadly, she won’t realize shit. These people don’t have revelations about who they support politically. They bury their heads in the sand eternally. I still know people who are die hard George W Bush supporters and think he was the best president we’ve ever had.
Honestly, it’s a mixed bag of all three. For some, the nostalgia of that time is very strong and for others they feel like GWB embodied the best of the Republican party(which says so much about the Republican party). And some are just bullshit contrarians who want to shut the people up who tout Obama and Biden’s accomplishments.