Given Musk's predictions of civil war in the UK, a prediction that is designed, in my opinion, to encourage violence, I think X should be banned in the UK for a month. Who would vote for a petition to that effect?
Musk is a non-state political actor. He should be sanctioned when he interferes in UK politics and promotes civil disorder.
I will be writing to my MP. I encourage others to do the same. He is a risk to the rule of law and democracy in the UK.