Because Facebook hasn’t done anything yet.

And they cannot circumvent to ActivityPub protocol to display ads to users who don’t want so see them. Claiming otherwise is conspiracy theories.

Blocking Facebook as a user is not good enough

Yes, it is.

Any server that connects to them legitimizes them and is not acceptable behavior.

That’s not for you to decide.

It absolute is not a conspiracy

It absolutely is.

and most people unwilling to participate in any server that interacts with Facebook in any way

First: That’s untrue.

Second: Such an opinion is based on conspiracy theories and therefore not valid.

are doing so exactly because they understand the technology

No, they and you don’t.

“I won’t participate in a platform that doesn’t completely block Facebook” is not the naive, uninformed position.

Yes, it is and you don’t even realize that you are participatin in a platform that doesn’t completely block Facebook Threads right now. That’s proof enough that you don’t understand the technology.

It’s the people who recognize how pure fucking evil Facebook is.

Then allowing ad-free access to accounts hosted there should be your agenda. That’s how they don’t get money, not by pushing people to sign up for their platform, just because they want to follow their favorite movie franchise or sports team.