I don’t think our method of internal government would matter as much to the world as the foreign policies of the individual leader. For reference on that see 2016-2020.
Likely more introverted and make the world a better place for most but Canada and Mexico might be in trouble. Eg here in Australia you’d hope we kick all the US bases out of Australia, which were a bad fucking idea in the first place.
The externalising of the shit show of inevitable consequence of being a dictatorship might be a neighbiir issue eg instead of just rhetoric about those damn immigrants, invade Mexico to sure up the borders. One hopes the rest of the world would rally behind Mexico, except perhaps like minded “bros” like Russia, Hungary, North korea, Vietnam, Camboida, Myanmar etc etc.
Not much change in the big US agendas: Wars to protect and expand oil use, and now tech monopoly to control colonial democracies.
Democracy is significantly easier to create an Israel first or US first rulership in the world. It just takes a little bit of money. Media is desperate to ally with oligarchy/zionism, and an even tinier bit of money achieves that. CIA can JFK any politician that doesn’t accept their money, and NGOs to foment insurrection “for liberal democratic values” are simply NGOs to foment US sponsored war and destabilization of their lives.
The only possible change would be a military coup of the US that disrupts “Israel first” rule, and oligarchist/corporatist warmongering meant to diminish Americans and other humans. Less democracy doesn’t mean less corruption and subjugation. Georgia successfully resisted a suicidal path earlier this year, to the dismay of “US approved democracy” demonic forces.
People are too dumb with too little concern to inform/care about making the right democratic choices. They pick one of the heroes their media tells them to pick, and rely on empty promises made by the heroes.
Depends on your demographics a bit. Dictatorships like to scapegoat ethnic minorities or other out groups (see Pinochet’s, Mao’s, Pol Pot’s, etc extermination of scientists and educators) for society’s problems. These groups of people tend to experience much greater intensity of oppression under dictatorships than already present in the US. This tends to change culture on a fundamental level because most people actively try to fit in with the in group to avoid becoming a target themselves.
While present to some degree in our current system, another core characteristic of dictatorships is that self enrichment for those in power is the primary driving factor for decision making. Dictators don’t need to pay lip service to making decisions for the greater good. You see this especially prominently in dictatorships in developing countries with valuable resources… The dictators and their close friends take all of the wealth from resource extraction for themselves and everyone else lives in extreme poverty. Yes we have wealth inequality already, but it would be accelerated even more. You could see even highly skilled professionals having a hard time making ends meet (or in jail for being too smart and having “ideas”), and even more homelessness, potentially even wide scale famine.
In terms of geopolitics… Our relationship with allies would become about how the relationship personally benefits those in power.
Less dependence on a US dollar weakened by faster inflation. Fewer foreign investments in the US. Nations less willing to host US bases, building up their own military instead. Less of a coordinated effort to fight contagious diseases or provide aid during disasters. The internet fragments, com domains become less popular for exchanging ideas and commerce.