People change. The old stereotype is that people tend to be very liberal in high school and college but become very conservative with a mortgage and a couple of kids. I don’t know how often that actually plays out but it makes sense.
When you don’t have anything it’s easy to demand a lot of things from the government. When you have money you want to do everything you can to hold onto it and that means not paying taxes. It flips around again when people are super rich though: then they don’t mind paying taxes (because their effective tax rate is very low). It’s the middle class who get screwed the most.