Elon is not in Brazil, and making the service available via CloudFlare was not an action taken in Brazil. Brazil should be able to seize assets in Brazil and change how they block access to prevent Twitter from doing business in Brazil, but arresting people in other countries for something like this is extreme.
We can all hate Elon and Twitter, but we’re really arguing in favor of internet censorship and extraditions for foreign citizens living in their home country that, knowingly or unknowngly, assisted or has employees that assisted people in circumventing that censorship.