At first, they are capable of recognizing why they are leaving, but soon they seem to forget or they never really understood how their previous State became a sh*thole. It always starts small; "Where I come from, someone would pick up the trash every week, let's get rash pick up" - and your taxes go up a little. "Where I come from we had ...." - and your taxes go up a little more.
Over a decade later all those small changes that seemed fairly insignificant at the time add up and when you look back you are surrounded by Karens, your taxes increased 60%, they are in the middle of voting for a new school worth $350M and you are looking at another tax hike. Don't worry, soon the FD and PD will get new HQ as well worth over $100M each.
People don't think long term.