The only alternative figure I found was 10% own 70%.
Wealth taxes likely won't be able to pull all the weight - fair enough - but there is also room for significantly higher taxes for the top income brackets.
10% owning 70% is vastly different from 1% owning 90%. And remember, what is usually taxed is not wealth, but rather income and consumption, and those are much more equitably distributed.
And sure there is room for higher taxes on the top income brackets, I wasn't disputing that. I was just pointing out that the notion we see frequently thrown around by "progressives" both on CFC and American media that the US could have an European-style welfare state if only those nasty millionaires paid their "fair share" is a complete fallacy. The European countries that do have a comprehensive welfare state apply higher taxes not only to their richest citizens, but pretty much across the board. A middle class American would see much less disposable income (and of course would in turn have more services provided by the government). This trade-off may seem desirable to many, but I doubt it is to the average middle class American.