Starmer, T.Breton (former EU commissioner, the one who got denied VISA to the US going forward), google them with "X ban" and you'll have all the results you want.
Similar with many other EU political figures.
https://www.cbsnews.com/news/uk-x-elon-musk-grok-ai-sexualiz...
As for T. Breton, it seems they're wanting X to abide by the EU's Digital Services Act, which requires transparency in how a company tries to combat disinformation among other things (protection of children's exposure to dangerous content being one of them).
https://www.euronews.com/my-europe/2025/12/24/us-visa-ban-ta...
I still don't see where the Iranian protests or regime change there would factor into this.
Again, typical socialism reflexes: you dont like X, so instead f just not using it, you feel like you need to send us the police to make us not use it...
PS: do you have short and blue hair ? Just a question, don't get too triggered.