A dictatorship is always inevitable after society goes broke after proliferate spending.
So yes, if the politicians don’t get together and fix America’s finances, an authoritarian government is inevitable.
I am afraid that this is what’s in the cards as most people are too ignorant to wake up. How it will play out will be every ones guess. Neither would I be surprised if there will be another major war in the near future, as the way the US keeps pushing it is almost inevitable. I hope I am wrong.