There's plenty of people who approve of what Trump's doing, or don't care as long as they get something out of it (a tax break, deregulation, "Handmaid's Tale"-esque social policies, some form of bigotry satisfied, etc.). Also, as LBJ noted, plenty of people are stupid, easy racist marks.
Stephen Colbert Outraged Over Americans Who Still Approve Donald Trump
https://variety.com/2026/tv/news/stephen-colbert-outraged-americans-approve-donald-trump-1236704349/