LOL, after 4 years of Trump being blamed for everything bad, you now have an objection to the President being blamed? Of course....
Well, Biden is the Commander In Chief, so much of what we do in Ukraine is his call. And, frankly, only an idiot has been unaware that Russia was not going to let Ukraine join NATO. This war didn't just start 2 months ago. It started 10-15 years ago, and has been ongoing;
Had NATO just committed to Ukraine staying out of NATO, none of this would be happening right now. The Left used to be against NATO expansion, not sure what happened. In 2015, John Mearsheimer wrote, “The West is leading Ukraine down the primrose path, and the end result is that Ukraine is going to get wrecked.”
Here is a good explanation of the conflict - - great video.
Lots of factors -- Nato Expaansion, EU expansion and Orange Revolution - Coup of February 22, 2014.