Ok, maybe, I’d be interested in seeing a source on this

It's really easy to find if you actually wanted to verify, rather than just disingenuously cast doubt. Planet Money has done podcasts episodes on it.

Not at all accurate

Entirely accurate. We were the manufacturing center for much of the world until Europe was able to build back, which was badly hampered by foolish austerity measures. This is literally the reason why America had such a phenomenal post-war boom and an explosion of the middle class.

but America isn’t less prosperous now. That prosperity has just been consolidated to the top 1%

Gee, I wonder if that has anything to do with the loss of manufacturing jobs, disappearing union representation, and subsequent devaluation of labor?

You're identifying symptoms, not causes. Write less and read more.