Can we sue Mexico for the humanitarian crisis on our border, too?
No, not really, both because of the absence of a legal basis for any such suit, and because it wouldn't be targeting the responsible actor.
We're coming for your stuff, too, lol
Our civilization is facing a severe inference/causality deficit, it would seem, in favor of self-destructive empathy, c.f. Nietzche's Master/Slave Morals Duality.