While increases in GDP don't all go to working class Americans, the two are not completely decoupled either. If you look at the small-scale variations in both they match each other pretty closely. I also suspect that it's the working class that would eat any dramatic GDP decrease.
We can at least agree that the working class would be on the receiving end of the worst of the consequences for any flavor of economic downsizing, just like they have been during every other recession, market crash, etc. to date. I would however like to suggest not letting yourself get distracted by the fact that the two lines kinda wiggle similarly. That massive and growing pie slice where the two decoupled is absolutely the larger issue.
