If you want to upset the wealthy, institute a wealth tax (and redistribute as UBI). If you want to decrease asset prices, tax them (without loopholes) and see

If you want to upset the wealthy, institute a wealth tax (and redistribute as UBI). If you want to decrease asset prices, tax them (without loopholes) and see their valuation drop real fast, or slow - depending on tax rate. Just remember to equitably distribute a part of proceeds so you're helping, not hurting the poor.