To nitpick, you mean "unfettered capitalism". As in no government involvement. Which has the identical problem to unfettered anarchy: coalitions form, creating governments. Since many markets have network effects (e.g. bulk purchasing gives lower price per unit) a monopoly tends to be one of the possible steady state solutions. But any monopoly can choose to become a governor of their market, being able to impose regulation even through means other than government (e.g. pull resources, poach, lawsuits, or even decide to operate at a loss until the competition is dead (i.e. "Silicon Valley Strategy").
I just mention this because it's not a problem exactly limited to capitalism. It's a problem that exists in many forms of government and economics (like socialism). It just relies on asymmetric power
I just mention this because it's not a problem exactly limited to capitalism. It's a problem that exists in many forms of government and economics (like socialism). It just relies on asymmetric power