Totally unregulated capitalism is what cartel wars are. A prohibition on murder is a regulation. In a totally free market a corporation could murder to obtain

Totally unregulated capitalism is what cartel wars are. A prohibition on murder is a regulation. In a totally free market a corporation could murder to obtain market advantage. This is what criminal economics involves. But of course free market zealots won't want to allow unregulated murder. There's no assurance of property rights (which is also regulation). So there are no true free market advocates, merely people that want to set the regulation boundary to the point that maximally benefits them.