Despite your belittlement of such speeches as some youthful mishap, these are regarded as hate speech in established democracies. So no, the problem here should not be that some muzzie with a screw loose will beat him up. The problem is that such misogyny and hatred towards Muslims should be flagged up under the law in any competent legal system. In England, such a speech would be immediately a police matter under digital crime and hate crime laws.
Muslims are not stating they will be harmed. The perpetrator himself is seeking to harm Muslims.