This isn't from wider society, it's a bunch from a niche of socialists that made a career preaching against big tech. It's basically a call for state censorship because big tech is bad and government good, "obviously". At least one of the names can be directly related with the current administration, Jose Graziano da Silva was a minister of Lula. Take it with a lethal dose of sodium chloride.
The site you linked to seems to be on Musk's side though. Wasn't there a non far-right source?
Calling this "censorship" is only adding to his agenda. Musk decided on his own account to close his office in Brazil, which he is required by law to operate Twitter here.
There's no censorship, just a billionaire man-child having a tantrum.
