Because granting complete, total freedom to everyone in the society will simply engender uncontrollable chaos.
For sure. But it would be short-lived chaos, before control is exerted on people again. The strong would rule.
The only problem is that the apparatus of state that make these laws, make it in the first place for their benefit, and continually twist it for their self-interests.
Remember that every government, no matter who is in, is a monopoly organisation. It all needs to be decentralised.