The US gives the rich tax breaks, the rich hoard their wealth, ...
To be fair, they don't all hoard all of it; some buy really, really expensive yachts - and slightly less expensive backup yachts for those yachts - or media companies, like TikTok and Paramount, a Nth back-up mansion, or donate money to the President for favors, etc...
Those really, really expensive yachts are a huge wealth transfer to the working class. Do you have any idea how many working class people it takes to build, maintain and operate those things?
And most of the rich don't hoard their wealth because if they did, inflation would make them a lot less rich. Most of the rich have most of their money invested in ventures that make them more money.
But if they did hoard their wealth, that would actually counteract (at least partially) inflation. Taking money out of circulation decreases the money supply which makes the remaining money more valuable.
The issue isn't hoarding wealth, it's investing wealth into non-productive ventures. Which, granted, does include paying hundreds of millions to skilled tradespeople to build yachts that sit underutilized. But it also includes building and operating cruise ships for the less rich, and operating professional sports leagues and the entire entertainment industry.