A green card has similar problems, similar exit taxes and so on. Get a green card, move back to your home country, you still have that tax burden as long as you have that green card.

The USA is only one of two (other being Eritrea) countries that taxes non-resident citizens. On top of that Eritrea's expat tax is only a flat ~%2 and is a remote african dictatorship. The USA is the only country which exposes it's non-resident citizens to a full tax load and system.