You seem to take great pride in the Chechens. What are you more proud of: Beslan or Boston?
I could multiply the atrocities of the Chechens a thousandfold, and it would not come close to the atrocities directly carried out or abetted by the Russians (~100m dead). Anyone who helps the Russians to realize the error of their ways ought to be at least a temporary ally of these United States. If we could ally with the mass-murdering Russians to beat Germany during WWII, there's very little we can't do.
The reference to the Chechens had to do with the significant casualties they inflicted on the Russians despite the postage stamp size of Chechnya (7k sq miles compared to Ukraine’s 250K) and its roughly 1m population (compared to Ukraine’s 50m). Assuming Ukrainians can work up the motivation, they should be able to inflict at least 10x the casualties that the Chechens inflicted on the Russians.