The original question was whether TD economics works. As I see it, if it did, all classes of society would be seeing relatively equal benefits. That does not mean income equality. Rather, it means that if the income of the upper class rises, say 10%, then the income of the folks in the lower income brackets rises at about the same rate. So, as an economic theory, TD is worthless. But, as a means of moving economic gains from one sector of society to another, it has been a gold mine for the 1%. Literally.

Equality of opportunity does not exist. We do not reset "opportunity" with each passing generation. Those born with more, have more opportunity to get more. Those born with less, struggle to maintain what they have. That's just reality.