From what I am reading about the situation, I think that we are into a place where the US has to leave NATO. Since Zelenskyy insists on keeping the war going, and refused any kind of peace deal, we withdrew support for the war.
Then Z went to the European countries, and some of them have agreed to give him money and troops and weapons so he can continue the war.
If NATO gets involved, there is something called Article 5 (or some such name) which requires all the NATO members to join in the conflict, and if the US is part of NATO, then we would be forced to support the war, helping it to continue much longer, and even more people from many countries being killed.
They are already kidnapping people in Ukraine to force them into the army, and those same tactics would soon be happening in other European countries; so financing the war to continue is bad for everyone except the people who are pocketing money from the war. Most of Europe gets their oil from Russia, so siding with Ukraine is going to probably stop that from continuing, or it will go up in price, at the very least.
Z signed a deal for minerals with the UK (from what I read), but when they send people over there to mine the minerals, they will end up being kidnapped and put into the war instead.
If the US leaves NATO, we actually are in a much better position, as far as I can see.
Russia already wants to work out a rare earth minerals deal with us, China is not likely to attack the US, but we can use the money and troops that have gone to NATO to strengthen our own country, just in case it were needed.
No other country in NATO has enough military to help the US much if we were attacked anyway, so we would be on our own regardless. Even Canada is going to be sending money and troops to Ukraine, instead of being aligned with the United States, so they are going to have to scrape up a lot more people for their military now.