If you imagine that there was no US involvement and Ukraine's leadership did not in fact repeatedly state its intentions to fully join NATO in the 2000s, sure. I won't claim that the US materially supported the Maidan uprising, because there's no evidence.
Now going with that, it means Russia invaded Ukraine in an act of pure aggression. Instead of the halfway support Biden gave, we should be directly fighting Russia over this. Putin won't start WW3 over us stopping a totally unjustified expansion, unless he's already intent on WW3 anyway.
