If you have enough money that you are renouncing US citizenship to avoid your taxes, then the fee is a rounding error. And I'm quite happy with US citizens who

If you have enough money that you are renouncing US citizenship to avoid your taxes, then the fee is a rounding error. And I'm quite happy with US citizens who make their money as US citizens paying their taxes on cap gains before they go. Morally it seems superior, and practically it keeps everyone from renouncing their citizenship right before their startup sells.