If your system makes life worse for a certain group of people, you either need to prevent that group from leaving altogether, or ensure that there is no place that they can go to. If you iterate this to the logical conclusion, you end up with something like "globalism."
In this particular case, this is mostly to do with not wanting to live in places with strict lockdown policies, high rates of homelessness and criminality, while simultaneously paying much more in taxes and living expenses, and seeing few of the benefits of being in an urban hub while doing it.
But my point stands: don't forget how quickly people will be willing to upend their lives at the very moment their existence is sufficiently worse than it would be elsewhere. And when you target the wealthy, you target the people most capable of moving anywhere else.