Petition Apple and the other tech sites to drop twitter. They know they host the vile pages of antisemites in Iran and the US.
Ask them to defend their action if they do not comply.
I don’t understand why you can’t sue these social media platforms...their so called policies are enforced arbitrarily. If a restaurant has a no-shoes no-service policy but they let in some people with shoes but others without shoes it seems to me you can sue that business...but I’m no lawyer.