I agree. But I wouldn’t refer to it as ‘isolationism’ per se.
I see it as a tactical move to shore up our own country first (economically, culturally, militarily), and that will require everything we’ve got. That also includes eradicating the enemy within.
Then we’re in a position to resume our proper role as leader of the free world.
I agree with your perspective. First things first, and that means setting our own house in order before addressing anything or anyone else.