Cloudflare was happy to host Kiwi Farms for a long time. I doubt they care what Musk does.
Considering the initial order of the Brazilian judiciary regarding VPN, this is almost certainly what Twitter hopes to achieve here.
they will probably get notified to block twitter in Brazil and will likely comply.
Tying your service to vital internet infrastructure can work. It doesn't even have to be a particularly ironclad solution. In 2018, the powers that be in Russia decided it's cheaper to flood Telegram with their own propaganda, rather than block it.
I wish... That sort of massive economic damage is exactly what this country deserves. It's gotten to the point I'm hoping Trump wins and sanctions this place for stealing millions from american companies via arbitrary fines.