Tax the Rich on Stock Appreciation in Any One Year

Bidon wants to tax the rich on appreciation of their stock assets in any one year, with no word as to whether they could get it right off if it went down next year. There isn't the slightest chance that this can get pasd. It's almost like it's a joke proposal. I got an idea, every time you put on mis matching socks, if your net wealth is over a million dollars, you can pay seven % sirtax. And people would say, i don't know, but that's the dullest idea i've ever heard. Here's my challenge to you, see if you can find even a democrat economist, a professional economist, a democrat