Your screed has no bearing on the security, or well being of Americans.
American Nationalists do not care what happens to the rest of the world, nor those in it.
Then you guys are total mindless babbling idiots.
No place in the world is more than a few minutes away by ICBM, or a few hours away by commercial airliner, or a few days away by ship.
It's impossible to isolate America from the rest of the world, especially our allies, and any effort to do so will only make our conditions worse.
Using reasonable safeguards against over-dependence on our enemies (i.e., China) is one thing.
Applying those same restrictions to our friends & allies would be the height of stupidity.
Vlad the Invader's war in Ukraine represents a return to the Empires of Conquest that were largely destroyed by the First World War.
That new world of empires will not be friendly to us, and we will not like it.