While I can agree that there is no evidence suggesting that the absence of authority would automatically lead to chaos, I believe it's important to also recognize the role that governance plays in ensuring individuals and communities are protected from harmful forces.

Complete freedom, while attractive in theory, requires a great deal of trust between people and some level of cooperation to maintain any kind of civilization. If we lived in a utopia where everyone strictly observed moral principles predicting how other folks will react beside you all te time (&assimilating not just legality but morality) then complete freedom might - emphasis on might - be achievable without outside mediation.

In an untamed world stranded marooned such as the character Robinson Crusoe imagine being bounded by floating detritus somewhere near Africa. Note that trying to do everything oneself-even attempting sanitary physical maintenance & balancing split responsibilities on all trends-spreading even basic functionality diminishes likelihood survival & gets intense quick