Ukrainians understand better than anyone just how much you DO NOT want to be under the thumb of Putin. I don't blame them for fighting back.
And this isn't, or at least did not start out as a "Russia-US proxy war". Ukraine is a sovereign country that sensibly wanted to forge strong ties to Europe and the West. For selfish and egotistical reasons Putin hated that idea and his puppet was going to ignore this desire so Ukrainians kicked him out.