we 1000% need all kinds of wealth taxes. The money's been hoarded for decades and I don't think that money is going to the next generation when the boomers kick the bucket. Inheritance tax, ultra high income tax, taxes on stocks if possible. The government wants to defund food stamps and healthcare while giving the robber barons trillions in tax breaks. Something's gotta give.
Sadly I think a wealth tax would make us all poorer in the end. Most of the wealth held by the top 0.01% is in the form of equities/investments in various industries. Taxing this would literally just suck capital out of the economy. I think taxing real estate holdings is a good idea though (something like Georgeism).