If everyone in America thought that, most of us humans would be dead and the remnants of our species would speak German, Japanese, or Russian only
Lend-Lease began in 1941 - so we were exporting war materiel and technology years before we got directly involved in WW2.
What does this mean? You seem to say the war on communism did nothing because we won it anyway? How can you tell?
It’s better to ask for my reasoning and explain your own opposing point of view.