A big part of EV buyers remorse has to do with basic human behavior. People saw other people buying them up in '21/'22. Talking constantly about them. This lead to a boom in sales with buying behavior that goes back thousands of years. Reasoning goes out the window. Financial implications go out the window. Their neighbors are doing it, so it must be right.
That shiny veneer has worn off. The hype is gone. FOMO a distant memory. Reality sets in. Now things that actually do matter overshadow the once blissfully ignorant happy times.