No shit. That's why, even if it's an exaggeration to call the entire stock market a pyramid scheme, you can't justify the claim that it's entirely "underlying business activity that drives total returns". That's the real question (from which dividends are, yes, a distraction).
A lot of folks think the top ten stocks in the S&P 500 making up ~40% of the capitalization is bonkers, but they also make up ~40% of the net income share:
So from an earnings/income perspective, there appears to be a link between the two.
Perhaps worth noting that the US markets seem to (only?) outperform when tech is outperforming, with other US non-tech sectors basically performing the same as out countries' non-tech sectors:
No shit. That's why, even if it's an exaggeration to call the entire stock market a pyramid scheme, you can't justify the claim that it's entirely "underlying business activity that drives total returns". That's the real question (from which dividends are, yes, a distraction).