What we have now is destructive, and what I'm talking about is science fiction. It would require significant legal and economic changes. Coincidentally, it appears now that the long-term survival of industrialized human society will require significant legal and economic changes. So, that's why I would say such a crazy thing.

With the wealth distribution curve we have today, I don't think your proposed solution goes anywhere near far enough to stop the consolidation of wealth in the hands of a very few who hoard it and use it to buy governments. But maybe your definition of "solved" in this context is not the same as mine.