I don't think it would fix every problem, but I really do think a 100% estate tax for everything over $1M would really help.
(Actually, instead of an arbitrary $1M, let's cap it at 138,000x the federal minimum hourly wage. That's currently about the same amount, but tying it to the minimum wage will help it adjust for inflation over time and will give those rich fucks some motivation to finally increase the minimum wage.)
