It would backfire like Brexit. Imagine the USA openly shunted by all former allies about their war crimes and other international crimes. The US forgets they currently can get away with a lot, and they do, because they are also an important ally. If you remove their NATO support, what reason is left to whistle ignorance?
Brexit was a disaster because the UK economy was third-place-and-shrinking in the economic block. They had no leverage.
NATOXIT would be a much bigger deal, because the US is the premier global military power and the single largest exporter of weapons and associated tech.
Also, the NATO thing is pure bluster in order to assert leverage over the bloc, while Brexit was a dog-catching-the-car scenario. The Tories invented so many fictions about how awful EU membership was that they couldn’t accept what generous concessions were offered. Meanwhile, Trump will happily take a big personal kickback for a small concession on arms sales.
That would be a good thing.
do you care to elaborate
https://en.wikipedia.org/wiki/Operation_Gladio
As a non-american, I am baffled by the american “left” support for a militaristic organisation that empowered far-right network in western europe’s intelligence service for the sake of anticommunism. Those people killed socialists politicians here.