I don't really see the problem with the current definition of a monopoly if consumers are saving money. The Europeans focus more on the sorts of effects you're

I don't really see the problem with the current definition of a monopoly if consumers are saving money. The Europeans focus more on the sorts of effects you're talking about and they're far from famous for their efficient businesses practices or low consumer prices. Or is the idea that uncompetitive small businesses are valuable in a totally real but difficult to measure way?