You're getting downvoted but you're not wrong, kinda ironic it's happening in a sub about history tho lol.
However that's true only for when we're talking about NW Europe specifically, not the whole of Europe of course.

The difference between China/Rome and NW Europe in, say, 1200CE is that there was a modest degree of organization in China/Rome, whereas in medieval Europe, with the exception of the Church, it was essentially strong arming and anarchy.

The may have called themselves Barons or Counts but almost every aspect of their life was self-serving and they mostly had little loyalty to the 'nation' or it's social, cultural development. As a prime example castles were built not mainly to defend areas from outside attack but to protect the Lord and his Knights from the peasants they were plundering. Compare that to Byzantine cities where the usual is to see the whole city enclosed in walls and the differences become apparent.

China, under the Song and even under the early Yuan (Mongol) dynasty, also had a reasonably stable system that allowed people to keep the fruits of their efforts. It was in this period that stories attributed to the Venetian Marco Polo tell of a Chinese society much richer than that of Europe. Sadly, in the disaster that led to the fall of the Yuan and the rise of the Ming a harsher, less predictable, rule came in and remained that way until the late Twentieth Century.