This isn't just rural Nebraskans, and, let's be clear, here.
Trump appeals to the inner being of many people, and brings that ugly inner being to the surface of those people. These people are (and have always been) who they are. Trump just gives them license, part and parcel to act on their inner self because he does the same thing.
I have an uncle that is like that. During my mother's funeral, I found out he was supposed to be there, but couldn't because he and the family caught COVID. When I called to check up on him, he immediately regurgitated the whole "aborted baby fetuses" line to me and talked about using Ivermectin and the same treatments that Trump used (or so he was told).
One of the smartest dudes I'd ever known. I spent 45 minutes in tears trying to convince him to not make me have to bury him the same time as my Mother. Thankfully, he made it through, but still refuses to get vaccinated....strictly because of Trump.
He's not a rural Nebraskan....he's an older, college educated African-American retired AF veteran male living in Alabama.