I can't concieve of a reason the results would be much better for the American people in a similar situation
It is easy, their only real big war was WW2, where they had two things.
First, a lot of resources and manpower like Soviet Yunyun.
Second, a lot of water around them that made enemy invasions harder than usual.
The oceans were like one of those mobile pvp game cash shop shields that protect your base.
This applies somewhat today, besides ICBMs a land assault would be hard.
The rest of the US wars were either failiures, or pyrrhic victories against non peer foes. They lost Vietnam and got a tie in Korea, and back than they had their own industry. Than they fought tiny arab nations 40 years behind them technologically. It would be like France invading Monaco or Vatican.
Now gigabrained (((elites))) had been lead by their schnozes to ship that all to China, and the population is the fattest in the world.
They are going on the WW2 era hype and don't realise that they weren't fighting equals in the sandbox.
The USA is like a kid who won a somewhat serious if not fair fight once, than kept beating up all the kids in wheelchairs and now thinks he is an invincible war god. He and his buddy Igor beat the shit out of Hans together, but that doesn't mean he'll beat Igor one on one.