Autocracts doesn't get democratically elected, as far as I understand. Trump is a democratically elected leader who will end his term at most in 2028. Autocracts tend to not be democratically elected (or to change the rules once they're elected to never be deposed). Zuckerberg will bend his knee to the Democrats if they win next term. This is not autocracy, this is just knowing where the wind blows.
That doesn't make sense with the common use of the word. Autocracy is a much wider term than a militia style dictatorship, and is mostly used in the context of democracy.
Most, if not all, autocrats are democratically elected (with some wildly varying definition of democracy of course).
In current times, democratically elected autocrats include Putin of Russia, Orban of Hungary, Erdoğan of Turkey, Chavez/Maduro of Venezuela, Bukele of El Slavador, and more. Jumping back a most notorious autocrat, Hitler was democratically elected.
Autocracy is not typically imposed by conquest, it is mostly created by corruption of institutions. It is not binary, it is on a scale.
In full democracies, all the institutions of government, legislative, executive, and judicial, are independent and serve as checks & balances against each other. And the institutions of society, industry, trade, press, academic, sport, social, etc. are also fully independent.
Under autocracy, all of these governmental and societal institutions are corrupted to bend to the will of the autocrat, often by his using force of government to his corrupt ends.
This is exactly what Trump just admitted to and Zuckerberg just did — he threatened Zuckerberg with unfair government actions, and Zuckerberg is now converting Facebook to work to further Trump's goals instead of remaining an independent institution.