"that's exactly how the non-western major world civilisations are called. "

Everyone called everyone else 'Barbarian' - that does not mean they were.

The Germanic tribes at the time were objectively, probably 'Barbarians' ... that's roughly objective.

But not the rest.

Medium is a 'cultural marxism' type website, they are 'non self aware social prog' type people there.

Some good stuff that goes of the hinges sometime.