Alexander, there is a limited time period to win this war. Support from America (and Europe) will diminish, and we don't know how quickly.
We urgently need to accurately assess what is obtainable, narrow that down, and all (not Putin) find agreement. Above all, we must avoid a drift, which Biden and America are most capable of.
I believe America (and the West) have responded to Putin's war in fundamentally the wrong way, which has resulted in a tragedy to the world that could have been avoided. My stance is not hindsight. Of course, history will tell.
Many thanks for your thoughtfulness and effort in writing these excellent articles on the Ukraine subject.