Ok why can't they just shut down Elon's account in the UK. He has no freedom of speech in UK, and if they claim he is causing uprisings, I think they would have ample standing to do it. We can't yell fire in movie theater.
As to immigration, I am a pro immigration individual. As long as your country has the jobs available and the infrastructure to accommodate, if someone wants to come for a better life, willing to do the tasks to become an upstanding citizen it should be allowed after background check and regular monitoring.
Even in this thread there are many that are protectionary. Whisky looking to Poland. Well Poland has its own issues, but it currently doesn't have a right wing party blaming immigration for all its problems so I guess they do have that.