Feudal society is good society. The (small) middle class flourishes, the land owners flourish, the power of the central government is limited. There are property rights. etc.
It sucks to be on the bottom of the feudal society, but it sucks to be on the bottom of every society. Upward mobility is there, but it takes a few generations, and it takes worthiness. Downward mobility is always present.
The great leaps forward in science, technology, and industry occurred in what was pretty much a feudal form of government.
Anyway, it’s better than whatever it is we have.
The enemies in a feudal system only had catapults, at best.
Today, the bad guys have nukes and missiles.