Higher real wages?
Do gains from trade not exist?
Comparative advantage: Country A has an easier time making X than Y, and country B has an easier time making Y than X, so country A should trade some of their Xs for Ys, and both countries end up richer.
I think there's some reasons to dial back interdependence a little, but I don't think it's a path likely to lead to greater wealth or real wages.
(And certainly no reason to make erratic changes at large scale, focusing on allies and neighbors first).