> US foreign incursions have always needed the support of the population, and therefore been scattershot and bumbling.
I don’t know whether you are blaming the populace for these wars or saying that they sabotaged them enough so that they didn’t become worse.
But in any case the difference between a nominal democracy and an outright authoritarian state isn’t that. The difference is that while an authoritarian state can just say that they want the oil and the resources of another territory, a nominal democracy has to at least somewhat pretend to be different and somewhat noble. Exactly because it has a very limited form of democracy.
And so you get people who unironically, completely sincerely, present the narrative of the US as a bumbling but loveable, kind of amnesiac, tries its best to be good, Destroyer Of The Third Reich, good ally to the good guys native-killing settler-colonial Taiwanese (they make chips?), oh we tried our best in Iraq except scratch that that was just in jest because no serious person could deny that that was anything less than an aggressive and unjustified war, but all the dictators we helped actively was just because they were better than the alternatives, except Gaddafi he was a piece of shit so Libya being a shithole and objectively worse off is okay because we tried our best fuck those scimitar barbarians.
Because that kind of narrative actually matters in a (nominal) democracy.
> Consider the opposite... a US with a government and foreign policy unmoored from popular attitudes and free to prosecute any and all imperial wars without internal resistance or dissent or risk of power changing hands every 4 years.
Yeah, then Congress would probably increase the military budget for the fifteenth time in a row (unlike now). Then being at war and continuing to dig into wars would probably be a “bipartisan issue”, no matter whether the power changes hands to Pepsi or Coke every four years (unlike now). Then the US military would probably be larger than a lot of of other nations combined (unlike now). Then the US military would probably have tons of bases around the world (unlike now). Then there would not be consequences for politicians and public servants who commit war crimes (unlike now). Then Barack Obama saying “we tortured some folks” would probably just be a meme-gaffe of no consequence (unlike now). Then the laughably anti-International Community American Service-Members' Protection Act would probably become a thing (unlike now).[1]
[1] https://en.wikipedia.org/wiki/American_Service-Members%27_Pr...