Soon after John Stewart Mill we assessed that markets are not perfect.
Accelerations in the different directions of bounded incentives create as-if Brownian motions, - not the stability towards optimality of a perfect organic model.
Or: what you write is rational, but people are easily not... The supply side should disappear from the market when irrational, but changes are slow..
Did we? Because while seemingly obvious nowadays it is not a settled matter in orthodox econ academia.