I agree that 9/11 primed America for totalitarianism, but as someone who was tear gassed protesting our invasion of Iraq and the Patriot Act, I don't think we're living in an autocracy. I've lived in too many autocratic countries now to think that that's anywhere close to the truth..America cannot possibly be compared to China or Russia in terms of the freedom living in the country to say (and do!) what you want, protected by a fairly rigorous rule of law that is still not subject to the whim of the ruling party. America more closely resembles an anarchic zone between a failed or wannabe autocratic regime and two anti-government movements, one right-wing and one left-wing. It's a nutty situation, but it definitely prevents either party from implementing anything even remotely resembling autocratic rule, to the extent that term has meaning in any other part of the world. Any sort of objective look at American political debate makes this patently obvious.
The closest parallel to America right now is Argentina prior to the dictatorship. If or when the real dictatorship comes, you'll know it, because just as in Russia you won't be publishing articles about it.
The Military Industrial Complex is the autocracy - the revolving door between the Joint Chiefs of Staff and the CFR - which are the entities really running the country (for the purposes of massively profitable military mis-adventures).
https://www.transparency.org/en/corruptionary/revolving-door
From a certain angle, it actually looks less like an autocracy and more like a military junta which has captured both 'sides' and puppet-masters either one depending on the mood of the masses, according to the needs of the MIC - which gets everything it wants without interference by "The People".