Earlier quoted context omitted.
America's morality has always come down to "might makes right" and it's quite clear that many people believe that's a perfectly satisfactory state of affairs.
Why fund your own demise? You can’t take the moral high ground with an immoral enemy. This isn’t a movie.
In particular, US foreign policy has been a long unending horror show of bombing, invasions, and starvation via sanctions. At the UN our record is dismal at best, with the US often standing entirely alone with regressive countries we've bought off like Saudia Arabia on a litany of issues.