The wealth concentration is a symptom of a dysfunctional economy based around rent-seeking monopolies. If you address that, the wealth equality comes as a result thanks to the non-zero sum nature of the economy, as more people are able to operate businesses in a fair way.
This is almost exactly the situation that resulted during the first gilded age with standard oil. Antitrust legislation works wonders if it has teeth. Currently it does not.
The current richest man on the planet makes his money not from economic rent but from first mover advantage in the electric car market, first mover advantage in the private space market, and first mover advantage in the online payments market.
What part of this seeks rent?
It is exceptionally easy for Americans to fund and start businesses at this point
Monopoly may lead to wealth inequality but you're confusing causation with correlation. Witnessed wealth inequality does not necessarily signal large scale monopoly
I think there's a case to be made against generational wealth on the basis that it can suppress free enterprise by acting monopolistically, capturing a regulatory environment, and/or by draining liquidity from an economy. But that is clearly not the case being made by most of the people who harp on wealth inequality. Free enterprise would eventually lead to inequality all over again, so obviously that's gotta go too /s
The pie gets bigger as long there is room for economic growth, which points to our finite planet and a zero-sum economy after all. When the non-zero wealth creation is only in the form of eg. circular investment, as we see it today, i would dismiss it as a detached numbers game.
1. The economy is not a zero-sum game.
2. The new gilded age concentrates wealth in a way that is harmful to free enterprise, detrimental to the economy, and bad for the world.