Why were peasants worse off under the feudal system than they had been before?

They had no hope of making a profit from their farmland.

At first the system would be great for peasants.. Then it gets  messed up.. Vassals were expected to perform various duties in exchange for their own land, so they could be forced to join the Army (Like in Feudal Japan), or forced to give theirs weeks worth of food the authorities.

Bbecause the jim crow laws were made to make voting difficult for african americans