Twitter, Facebook, Reddit, Pinterest, Snapchat, Tiktok.

Collectively they form an extreme oligopoly position, something quite comparable to the telecom oligopoly. They should be held to a different standard accordingly, if they want to retain such power in our society. If only a few of them simultaneously collude to censor, it has what can only be considered something akin to direct government censorship in the impact it has: you are without voice while everyone else is holding a bullhorn.

In this day and age, being denied access to social media is probably even more socially & culturally punishing than having your phone number turned off. It's more akin to not allowing people to leave their homes and enter public spaces, not allowing them to ever protest, not allowing them to ever voice their opinions in a public square.