The idea of a 2% wealth tax on fortunes worth more than €100m has been proposed by Gabriel Zucman, an economics professor who has become a household name in France.

I fully 100% agree.

The reason why the tax exempt amount is $100m is sothat 99% of the population have less than that amount in total wealth, so they pay no taxes at all; that's why it should be widely popular. At least parties like the AfD can't argue that it "hurts the small man", because that's simply not true.

I think that a wealth tax can only work if it's combined with import taxes, because otherwise companies just leave the country and go somewhere else to produce their products. To prevent them from doing so, they have to suffer a disadvantage if they do that, so they have to lose access to the market, for example, by implementing import taxes.