@Darth_Algar Unless Loli’s technology is good enough for that. Military-minded Earthlings have been theorizing for decades now about “brilliant pebble” weapons that are essentially guided rocks falling from space usable as precision munitions, which are more sophisticated than what I was talking about.
I expect that if Loli’s alien tech has force fields, it can probably aim some space rocks.
The point being that normally yes I would agree that probably any asteroid that destroys the entire USA will probably also be at least ruining Canada and Mexico too, and probably the entire planet, that it seems to me not that hard to imagine scenarios and/or definitions of “destroy the USA” that don’t keep me (who’s usually quick to give snarky answers) from answering the question.