Personally, I think it's healthy that America drops this exceptionalism attitude. We can't keep living off of the WW2 laurels forever. And other nations are clearly approaching our "world's best" status in various sectors: China builds a shitload of stuff, Canada has pandemic payment support and healthcare. We're very clearly not united against something like fascism and we're more fragmented, so yeah, we kinda can't do the WW2 things any more.