My late grandfather would agree with you, he hated that war.
But the truth is the U.S. supported our British & French allies from Day One, with massive loans and arms shipments.
So we were invested deeply in Allied victory, and when Germans began unrestricted U-Boat sinkings of our cargo ships, attempted to ally with Mexico to invade our Southern border (you may remember, we did use to have a border), and began preparing for a massive new offensive in France, Wilson flipped from anti-war to pro, and began working on a plan for "peace without victory".
Point is, we supported the Allies from the beginning and then went All In when it began to look like our team was losing.
Ukraine is not an ally. Europe can handle this one on their own.