Yes I know of someone who willingly gave up their US citizenship for tax reasons but has EU, Israeli, and a bunch of other citizenships. They get to live a good life in the Netherlands + traveling the world while the US tears itself apart and then when it is time to retire in 30-40 years, the country will be ripe of the picking..they will buy their citizenship back through one of the multiple buy your way into the US visa programs...and retire in Montana.