The actual act of a coup is unconstitutional in probably every country. But talking about a coup is not unconstitutional in many countries. For example in the US, seditious speech is protected.
Anyways, Alexandre de Moraes - the Supreme Court justice in this situation - is acting unconstitutionally in multiple ways. Issuing orders to censor, ban, or arrest in secret is depriving the victims of due process and the public of accountability. He also said himself that he is not getting his powers from law but from what the other court he sits on gave him as a new power, which is just a made up legal invention on his part. How can a court make up legal powers, when that is meant to come from the constitution and legislation?
> And Musk didn't fight as hard in India or Turkey for accounts of people that did far less.
You are one among many attempting the whataboutism of bringing up Turkey and India, even though it has no bearing on what is happening in Brazil. I don’t agree with censorship in any of these cases. However, Twitter/X has publicly stated that their policy is to comply with local laws in each country. The difference is in the legality of orders per that country’s own laws. In Brazil, there is a right to freedom of expression without censorship, per article 5 of the constitution. Also another difference is that the censorship orders here were done in secret - like with gag orders that make it invisible to the public - and this is both highly unethical but also makes this judge unaccountable and difficult to challenge.