Damming the concept of “markets” as “self-harming” and “unstable” is an asinine statement. Of course not every instantiation of a market is flawless and without trade offs. Any sufficiently large-scale social system is rife with weird second order effects.
We can only analyze the efficacy of markets by comparing them against their alternative. Ironically – given one of your complaints about markets is monopolism – the most common alternative to markets is monopolism by the government. Yet, governments suffer from the same bureaucratically-induced problems that you are attributing to organizations operating in markets. Indeed, they have it worse because they don’t have the external pressure of competition to keep their bad behavior in check. Accountability in the public sector is significantly worse than in the private sector. History is filled with state-owned monopolies that failed to adapt to changing situations and degrade into obsolescence while still bleeding the public of money.
Every social system over-produces some things and under-produces other things, in constantly shifting proportions as time goes on. Of all systems, sufficiently competitive markets are the best at dynamically adjusting to minimize both surpluses and shortages. State-owned monopolies are truly abysmal at matching supply and demand. There’s textbooks worth of material as to why this is the case.
And perhaps, you may be referring to some notion of “totally free markets”. But there are no totally free markets. All markets are subject to the formal laws of their various operating jurisdictions and the norms that come from operating in society. The great thing about markets is that when a company does bad things, the public usually can switch providers, thus punishing bad behavior. There are notable counter examples where there isn’t consumer choice, but those organizations get dragged in the media and are forced to change in the court of public opinion.
So, to be honest, I don’t know what you’re on about. What’s the fairyland alternative to “markets”?