You're worried about Europe, but how is the US a friendly jurisdiction for free speech? The Biden Admin targeted specific users on Twitter, and insisted those users were banned:
https://reclaimthenet.org/biden-admin-alex-berenson-twitter-...
What if Musk's Twitter doesn't listen to those requests? Don't you think the DOJ would apply pressure to Google/Apple to ban Twitter from the App Store? What happened to Parler? You can cherry-pick users "instigating violence" on any platform, including Facebook and reddit. The difference with those platforms is they censor who the government wants censored. It will be interesting to see Musk navigate both corporate media hit pieces and all political forces aligned against him.