Wealth taxes are unfair for the middle class they inevitably end up hitting. Multi billionaires being taxed on their wealth is not really unfair but they never really end up paying those taxes as they have access to legal tax avoidance loopholes so it's always the well off middle class that ends up footing the tax bill.
Wealth taxes should be dependent on what you do with your wealth. Is your wealth creating jobs, start-ups, education, research and innovation that benefit society and the environment? How about no wealth taxes for you. Is your wealth just sitting in hoarded land and real estate, looking to appreciate or for rent seeking opportunities? How about pay up or go fuck yourself.