Aside from the principled position Musk is taking there's this reality. "Mean tweets" is a catch phrase used by Trump supporters for his tweeting and basically all other actions. It can definitely be argued how he used Twitter turned people off and played a role in him losing the election. Since people think he may run again in 2024 why would opponents want to take away his use of a platform that helped cost him the election?
(this part is far less important but kind of interesting nonetheless)
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