Earlier quoted context omitted.
You forgot "wilfully letting go of democracy". US democracy is far away from dying, but who knows how much longer it can keep holding up.
Bearing in mind that this administration won the election and a lot of what they are doing is more-or-less what they campaigned on, I'm not sure democracy is at risk. One can pick around the details, but for example with regard to the firings, voters clearly approved of the concept of smaller, cheaper government. Which is basically what's happening. This is essentially democracy in action. Yes, the voters may come to…
Democracy had a bad reputation in the ancient world, because unconstrained majority decisions often led to terrible outcomes. In the modern world, democracy usually means liberal democracy, which includes things like the rule of law and constitutional protections. As a rough approximation, a constitution exists to prevent the government from doing what the voters want.
A constitution in itself a worthless document, and the checks and balances have no power. The power comes from conventions. Conventions on how the constitution should be interpreted and how the people in power should act within the constitutional framework. If too many people ignore the conventions and interpret the laws and regulations literally to their advantage, democracy will die. It died in the Roman Republic, and it has died in many modern republics. Plenty of authoritarian states maintain nominally democratic institutions. And many of them became like that in a way that was at least nominally legal.