This is the inevitable result of wealth concentration. The wealthy will spend their money buying up whatever resources they want. Today, most things are for sale, and they're all fungible. Solving this problem in any durable fashion requires not having billionaires.
There will almost always exist loopholes in any scheme. Having wealth effectively buys you new loopholes. It's a (non)virtuous cycle. We need to tie tax to wealth level and be done with it.
My friends in the cattle industry told me that one of Bill Gates’s companies is buying up pasture land and driving up prices across the midwest, too. I don’t know exactly how you’d legally prevent it, but it does seem like a problem.
In fairness to Bill Gates, buying a ton of pasture land seems like a reasonable step to diversify his fortune. It's hard to find enough non-tech places to stash that much money.
It's even worse than that, now he's buying up indigenous burial sites:
https://robbreport.com/shelter/celebrity-homes/mark-zuckerbe...
Billionaires buying tons of Hawaiian land is actually a huge problem. Marc Benioff has been doing it as well.