Yes absolutely. Also not a historian, but AIUI that’s probably the largest factor in the overall boom for the US economy at the time.

I didn’t mean to claim that the US was ever a peaceful nation. The best I could say is that the US sat out from the world wars until they had both (1) a way to sell war to the public and (2) a clear financial interest. Post-WWII, every US war has been a bullshit war.

I also don’t mean to sound positive about capitalism. My only real point was that for a brief period, (white) workers actually had an OK social contract with the ruling class. It didn’t last long at all in the grand scheme, and was probably a fluke, not real evidence that capitalism works.