No. YOU misunderstand. Taxes have been raised on the rich throughout history, to as high as 94% at times. Living conditions for working people are hugely increased, and the wealthy never leave, at least not in large numbers... where would they go? A tax haven?
Sure, but their money is tied up in physical capital assets.
Taxing the rich does work, we have just had capitalist propaganda drilled into our psyche over generations, convincing us that it doesn't.
And besides, what do you think we should do in order to address the wealth inequality and collapse of government power in the West?
Who do you want to prosper more, the 90%, or the wealthy owner class of the 10%?
A war is coming; we must pick a side, and it would be foolish to support a class that do not have our interests in mind.