What America needs to realize are a few simple facts

1. Russia actually HAS nukes.
2. Unlike the USA, Russian nukes are in working order and haven't been sold off to Haliburton (who then scrapped them to save money, which is why the USA is so bloody paranoid about anyone else gaining the technology.. It doesn't look to most of the world like a confident nuclear superpower.. more like a bullying scared liar waiting for it's bluff to be called by somebody)
3. If provoked enough Russia WILL protect itself and it's citizens, unlike the USA which will happily murder it's own people as an excuse to start illegal overseas wars to profit it's military/industrial oligarchs.
4. It has been known for over 200 years that it takes Russia about 2 years to gear up it's economy to fight a sustained war. Once it has it is self sufficient in everything it needs to win a long war of attrition against anybody. (Ask Napoleon and Germany how this works)
5. Ukraine is the first time Russia has invaded anywhere without invitation or permission since 1940, (*except Czechoslovakia in in 1968, but Russia was not acting alone) and has only done so to put an end to an ethnic cleansing operation which sparked a civil war right on it's border.. How does the USA stand in respect to "respecting the sovereignty of others borders" in the same timespan? Cambodia? Laos??? Nicaragua??? Belize??? El Salvador???? Cuba??????
6. There are clearly stated aims of the Ukranian War. The removal of Zelensky and his CIA backed Polish nazis leading to open and fair elections (which have not been held since the Orange Maidan), and the ending of the ethnic cleansing of Russian speaking peoples in the Eastern part of the Ukraine.