So like, if the mailman refuses to deliver mail, it’s fascism if I personally deliver my letters and those of my neighbors if they want me to?

Edit: To be clear, the example of Uber was used as someone usurping, which doesn’t exactly accord with how I think about usurpation. To usurp to me is to claim the moral authority of the government. But in this sense, it seems to be used to describe providing services that could be provided by the government. Usurpation in the sense of claiming to be the government is bad. Usurpation in the sense of providing services the government won’t is good.