1) Western policy risks building up a big Asian military alliance. It should be obvious to China that what is currently happening to Russia is also slated to happen to them. India will be nervous too unless they are hopelessly naive. China and the US were friends once too, back in ... the 2010s...
2) We're escalating towards WWIII. This is like watching athletes limbering up.
3) In the modern era it is astonishingly rare for the US military to get involved and leave a country better off than when they entered. The US does not have the resources to head in and rebuild Ukraine - that privilege now belongs to China, world manufacturing superpower. We're going to see massive distabilisation in Eastern Europe for a generation. The Poles are wise to be rapidly militarising.