Globalization certainly played its role in the dispariyt. But would we (you) be richer?
I don't think so. The bottom 50% of Americans are significantly richer than the bottom 50% of any other country or region, and our middle class is absurdly rich compared to any other middle class.
The "problem" is that the same is true of the rich. If we increased taxes on their assets, is that going to make all of us richer? I doubt it, not as much as taxing everyone less, government wasting less would. That's tried and true.
Only our bottom 10% are worse off.