Al, thank you for adding more details about WWI. I covered them briefly to show that the reservations many Americans have today regarding supporting Ukraine are nothing new.
Then it comes to the issue of Russia withdrawing from all territories taken after 1991. The objective is to create political conditions so that Russia can rejoin the international community and its citizen will prosper as the Germans and Japanese did after WWII. If we leave lingering border issues, Russia’s return will be conditional. Regardless of how called, it will not be a lasting peace accord. It will produce the next war a generation later.