[Far too many Americans have zero appreciation for the size of the Soviet effort, and the weight they brought to the fight. ]
It’s perfectly reasonable, because Americans also have zero appreciation for the fact that WWII might not have been necessary without the Nazi-Soviet alliance. Without an alliance with Stalin that gave Germany the freedom to concentrate its forces in the West, Hitler would likely not have mounted an invasion of France. The problem is that liberals tend to portray the Soviet war effort as this great and generous gift to mankind in general, when the Soviets were in fact quite literally fighting to avoid being killed to the last man, woman and child, and collaborated with the Nazis until the Nazis reached the Atlantic and decided to try to reach the Pacific at Soviet expense. Basically, the Soviets and Nazis were two packs of wolves that turned on one another.
What I find amusing is that prior to WWII, Western Europe tried its hand at being Switzerland once and failed. In the postwar period, it is having another go at being Switzerland. In time, the US will get tired of paying for Europe’s defense, and the Russians will get frisky again. Or the threat could come from a completely different direction. The common thread is that Europe will once again get caught with its pants down.