The only issue with wealth/income inequality in countries like America is that some goods are artificially constrained or positional (mostly housing).

A mediocre salary of $40,000 is enough to buy so many goods from competitive markets (phones, cars, anything you can get off Amazon/AliExpress). This becomes very apparent when you go to lesser developed countries.

The major costs in people's lives do not come from the billionaire class. If you tax them into oblivion and give that money away, it will be soaked up by housing anyway (look how sharply housing costs have risen after the growth in real income the past 2 years).