What happens when all ISPs in the country combine forces to block Voat, even though there's no law banning it?
https://en.wikipedia.org/wiki/Internet_censorship_in_Austral...
Are you going to suggest that people start their own ISP?
At some point, private actors can carry so much economic power that their private rules effectively become laws. Much of Jim Crow was implemented in this manner, in addition to actual legislation.