Yeah but making a new Facebook means you aren't able to use the ecosystem of the original in any way, you're totally disconnected from it. Same as making a new Hive.
That's the main difference. Just because everyone is currently using said blacklist doesn't mean you have to. You can create a platform that doesn't use it, and you're still on Hive. Should the blacklist rules change, your previous content will all be visible again.
It's more like... blacked out. You can still physically create the content here.
The thing is, what you talk about is always, always going to be an issue as long as laws exist. Which platform will allow pedophiles to advertise their distribution business with explicit videos and photography?
Of course, they either remove it, or they get removed. There's no getting around that, philosophically and legally. I'm sure you've already thought extensively about this topic though =P - which I haven't really
What's the main difference, that they are exactly the same regarding network utility?
I submit that censorship is an existential threat to survival, because the vector of oppression is particularly targeted, along with potential mitigations. Knowing where and what threats are, and what to do about them, is the majority of our ability to survive and thrive. It's not merely social validation, but a matter of life and death that we can speak forthrightly.