Why do people move to America when there is crime happening there? Maybe there are good things in America as well. You appreciate the good things and then try to fix the bad things.
All countries have crime, and the switching cost is immense. However some countries are much worse than others which makes it worth it.
Phones are at parity in terms of features, and the switching cost is trivial.
Moving even between counties is not comparable to just spending a few hundred dollars on a phone.