I really get the impression sometimes that you - and to be fair, many other Americans - think the rest of the world isn't truly real, it's just a big stage for American foreign policy to shine on, or to fail on as the case may be. You can argue about the wisdom of the NATO expansion, but it's a bit absurd to act as if that was all because of American desires rather than, oh, I don't know, the countries in question being very eager to join themselves?
As I mentioned in the other thread (yes, TyrReborn, there is another thread, and it's not like there are so many threads on the board that it's easy to miss ), definitely the Russian speakers in the Baltics and Ukraine have not been treated as well as they should have been, so it's no surprise that Russia would have something to say about that.
But while the Russians themselves overwhelmingly supported Putin's recognition of the breakaway provinces Donetsk and Luhansk, and many people in the West probably figured that it might not be such a terrible thing for those territories to join Russia instead of Ukraine, this crazy war against Ukraine as a whole is an entirely different matter. It's hard to see much, if any, gain for Russia in this whole mess Putin is creating, while there will definitely be a whole lot of losses, so while his most hardcore supporters may go along for the ride, there's dozens of millions of Russians rethinking their views on Putin right about now... who will remember, when the sanctions start to bite, that there was really no need for any of this, even if they largely agreed with Putin's prior comments about the Russian speakers in Ukraine.
Putin chose to cross the Rubicon, leaving his international supporters in an awkward position - forced to either draw the line and say, you lost me there, but then look like fools for having been positive about him up until now, or follow him in his madness as apparently Trump is doing. That goes for individuals as well as countries - China's position is already being scrutinized and it'll be interesting to see how it evolves. As for 'conflict with Russia' - it's very clear nobody will step in to actually fight for Ukraine, that has been clear for a while now. To the extent that there will be non-military conflict with Russia, well, they could hardly have provoked that any more blatantly than they have, so it's pretty ludicrous to blame that on anyone else than Putin's regime.