The problem of capitalism is the instability of "the operation of markets".
Especially after 2000, there has been an extreme consolidation in almost all markets, so that they are controlled by quasi-monopolies and the operation of those markets resembles more and more every year with the economies of the former socialist countries.
The economies of the former socialist countries were pretty much identical with the end stage of evolution of the capitalist markets, when a true monopoly controls each market.
When the dominance of Russia has collapsed after 1990, for about a decade there was a huge hope of improvements that would lead to economies everywhere functioning according to the ideal "free markets" theories. However, to the dismay of those liberated from the Russian influences, the Western countries have evolved since then to resemble more and more the systems that they were formerly criticizing, not only in the monopolistic markets, but also in mass surveillance, whistleblower punishments, great discrepancies between what the politicians say and what they do, politically-controlled Supreme Courts of Justice and so on.