A wealth tax shouldn't be designed in such a way that everyone has the same access to the exact same things. It should be designed in a way that removes or lowers the barriers for accessing those things, and gives more people the opportunity to access those things.

On one extreme you have a wealth tax that ensures that everyone has the exact same access to everything - that degenerates in a communist regime where nobody can get richer than another and people don't really have any incentives to be more productive than others.

On the other extreme you have no wealth tax at all - that degenerates in the American plutocracy and anarcho-capitalism, where a tiny fraction of the population owns most of the wealth, can swing elections in whichever direction they like, can make sure that politicians never charge a penny on them, and where the GINI index is at the same levels as it was in 1929 and the intergenerational earnings elasticity is so low that basically the family where you are born determines how much you're going to earn, regardless of your merit.

Between these two extremes there's a wide spectrum of wealth tax rates that you can apply to redistribute wealth and opportunity in a fairer way and find the best trade-off between meritocracy and equality. "Wealth tax aims to make everyone earn the same" is pure bullshit. "If you don't tax the billionaires then they will invest more and the wealth will trickle down to the population" is also another piece of utter Reaganist bullshit. It's time to admit these simple truths, because I'm honestly getting sick of people concluding "a wealth tax is communist" without even considering how wide the spectrum between the two extremes actually is, and I'm starting to question their actual intelligence.

I'm concerned about your particulr privilege here, why should I care about people who are wealthier than you, it's you who can take care of that, isn't it? It's a race to the bottom after all. If you claim that billionaries should not exist, I definitely claim that you are not allowed to own a house in the middle of Amsterdam (I think you should start by moving to Diemen, then we'll let you know if that's enough), and I definitely claim that you shouldn't be wealthier than an average citizen of, let's say, Bangladesh. It definitely will lower the barrier for them. By the same standard that you apply to billionaires. Your arguments about two extremes and how the tax should be designed to not affect your lifestyle specifically is no less a pure bullshit coming from a privileged virtue-signalling and comfortably-living european.