If they are hoarding the large majority of the nation’s income and wealth, then yeah, tax the rich. It’s the only plan that makes any sense. Close the generous tax loopholes and deductions that only rich people take advantage of.
Again, that has never worked in all human history.
And if they are 'hoarding' as if you being allowed to keep what is rightfully yours is "hoarding"..... that still changes nothing. You can't stop the rich from simply leaving the country.
Remember, France tried this. Their wealth tax, backfired so badly, that thousands of people were simply leaving the country, and taking their money with them.
Venezuela tried this, and all the rich and wealthy, moved to other countries, Columbia, the US, Brazil, and other places.
Every country that has ever tried the "tax the rich" has ended up in poverty, with the rich perfectly fine to go live elsewhere.
So you can say "it only makes sense" until you destroy the country, and you will only succeed in destroying the country.