Billionaires are richer than they have been in decades, yet in many countries they appear to pay lower effective tax rates than the middle class. But every proposal to tax them more runs into the same warning: push too hard, and they will simply leave. So
Norway was a setup. The increased tax rates without an exit tax. They now have a 34% exit tax but the first round of millionaires leaving was political corruption.
Meanwhile…Monaco has such high demand for residency they are expanding building into the sea like Venice. An entire city of tax avoiders (most of your sports heros).
Canada makes it trivial to place money offshore in the Caymans, Isle of Man, etc.