If you're living offshore and paying taxes to the place you live, there's no particularly good justification (except might makes right) for the US to force you to pay taxes. AFAIK it's the only country, both now and in history, to claim taxation rights over its citizens perpetually no matter where they are.

the comment chain was to which you are responding was not about trying to pay taxes only to the country you're living in (which basically everyone in the world can do minus US citizens), it was about setting up a company in a tax haven (think Cayman Islands) to avoid paying taxes at all because they decided they are too high, which of course raises questions about the morality, legality, and practical details of such a process