Can you show us a comparison of GDP growth rates, before and after wealth taxes were promulgated (and, where it happened, repealed)? Also, please, a comparison of GDP history between countries that have and lack wealth taxes.

Near as I can tell Europe has lagged way behind the U.S. in economic growth since the 1980s. I remember back in the 90s when catching up to the U.S. was stated goal of the incipient EU. How did that go? How does that relate to overall tax rates, public spending as a proportion of GDP? Are fertility rates artificially lowered by a high tax burden? Are they improved by the welfare state? Or is something else the matter with Europe?

I think "disaster" is an appropriate adjective for wealth taxes.

Not informed enough to comment on the others, but the wealth tax in France had a massive backlash and likely impacted their economy for the worse. The mistrust of the French Government due to this is affecting their bid to replace London as the financial capital of Europe. People are very, very wary of moving there.