In cold war it was obvious there were two sides, and the other was obviously more free than the other. Go ask for example Estonians, Lithuanians or Latvians who they enjoyed the yoke of the USSR.
Now, as China is becoming an ever more stronger player, we again see that there are two sides arising. While party lacks expansive ambitions in the traditional sense of landborders (except for Taiwan), they would very much like everyone to kotow to the party.
We are in a world where democracies are in decline and autocracies are in the rise. USA is still the biggest democracy. Leader of the free world? It's hyperbolic, but not _obviously totally wrong_.
This is not to say we are in some sort of manichean conflict world were one side is good and one is evil, or that US is good and the autocrats are evil. US is obviously a state actor that acts in it's own benefit and in the benefit of it's elites and so on, and these actions sometimes are very bad for civilians.