The United States is the nation that most threatens democracy worldwide, far more than Russia or even China.
A popular theory that for the most part works I democratic peace theory, which holds that democracies do not go to war against each other. Democracies and authoritarian or totalitarian regimes go to war against each other. Authoritarian and/or totalitarian regimes do so as well. The United States is undergoing a de-democratization and could become a regime that is more authoritarian than democratic during the Biden-Harris administration’s first term—something similar to what happened in the mid-2000s in Russia under Vladimir Putin. Add to this the authoritarian character of Washington’s two main adversaries and you have not a burgeoning democratic peace but a new East-West, not Russia-West ‘new cold war.’
The terrible beauty of “frozen conflicts” is that it takes hardly any effort to turn up the heat and re-escalate them into hot violence, but pressing the “pause” button later would need consensus, which is not so easy.