I really fear that it may. Once folks realise that they can make their lives better (in the short term at least) by using State violence to rob those who are better off (rather than through hard work), the long-term results are going to be ugly.
You may want to read up on the concept of the "tragedy of the commons" first.
I don't know what else you would call threatening people with deadly force unless they give the threatener money, other than 'robbery.'
You'll note that I didn't say that taxes aren't necessary: they are. They are, in fact, almost the textbook definition of a necessary evil: we must have them, and they are evil. We don't live in a perfect world.
What concerns me is that we have already raised the economic footprint of the State far beyond what is necessary, and that it is in fact deadweight holding us all back — to include the poor, whose ultimate interests are served not by dragging down the rich, but by being lifted up.
Would you call this robbery too? It seems to fit your definition.