That's a good example that proves my point and the reason why I said "even if think it is justified", it doesn't matter if it is a cap/tax/whatever, it only uses the same mechanisms of money laundering because it is money laundering (they are trying to hide that that money is not clean/legal, that the reason it is illegal is because it was not supossed to legally leave the origin country instead of being drug money, makes no difference to the law, but morally could be ok to some).

Then moving the capital is not legal.

Sure, but they are not trying to avoid taxation, which is the claim I was addressing.