Most European countries, including Switzerland, still have them. They do work with some limits. And they are absolutely necessary to prevent that, once you have made money, you can profit for the rest of your life including future generations.
If there is no form of weath + inheritance tax, a feudal society is unavoidable.
I don't see the problem. As long as there is 2% inflation that wealth needs to be put to work in a way that ends up employing someone, therefore the employee benefits from the existence of the wealth that someone else carried hundreds of years into the future.
> As long as there is 2% inflation that wealth needs to be put to work in a way that ends up employing someone
What exactly do you mean by this? Holding wealth in bars of gold doesnt need to employee anyone (if you have enough of them, you might want security personnel, but you could also just own a Gold ETF or something).
If there is no form of weath + inheritance tax, a feudal society is unavoidable.
Even if difficult, we'd better try.