For an example of what an "unregulated hellscape" looks like, take a look at the world of cryptocurrency and how common it is for people to get all of their property stolen.
Oh look everyone its another armchair economist who insists his conveniently specific definition of capitalism(You know the one that must be the case so his beliefs are not a self-inconsistent train wreck) is the absolute definition handed down to us by the word pope and sourced from a magic dictionary stored under his papal throne. The first time in the history of the internet.
According to my alternative word pope if every bit of ownership isn't private and it isn't devoid of regulation it can't be considered capitalism. See how easy it is to make up a definition then argue from it like its gospel.
Alternatively you could accept the much more reasonable circumstance that economies are messy things. Although some stress one economic principle more than another none can be purist in nature.