You mean something like a Berlin wall to stop the people leaving the paradise or a new kind of serfdom, where one should be tied to the land in which he was born?

Nailed it, serfdom was implemented exactly for the purpose of preventing tax evasion. Something something... doomed to repeat it.

I dunno why this is downvoted. This phrase: "the problem seems to be we can't tax the rich because they take advantage of globalism to move their money around"

Is a tiny distillation of one of the most difficult problems facing legislators intending to mitigate wealth inequality across their society: if the rich get upset, they can just take their toys and leave.

This is, from the perspective of legislative generations, a very new problem that has crystallized in the past 40 years with the expansion and standardization of international trade law.

They have great influences among the lawmakers. Rich people won't get themselves taxed(in general)

> the problem seems to be we can't tax the rich because they take advantage of globalism to move their money around

The problem is that different places have different values and policies and compete with each other? The problem is that people have the audacity to disagree with governments and seek out different ways of living? Sorry but any proposal that disincentivizes or punishes free movement is atrocious and totalitarian. And I mean that literally.