> Peasants were always in a constant state of having more labor available than the land they worked required

With the significant exception of post plague periods during which some big changes occurred wrt landholder / serf relations, expected pay rates, part ownership, etc.

eg: (unvetted source) Worker Power: How the black death revolutionised workers rights - https://historyguild.org/worker-power-how-the-black-death-re...