the "visibly Jewish" part where the police officer felt that violence could occur if he did walk across the march because he looked "visibly Jewish ". I feel sorry for the police officer who was acting with the man's safety in mind rather than any anti semitism
The police officer was correct that there was a threat of violence towards the man because he was Jewish. That was evident from the reaction of protestors.
The big problem is that people have been saying for 6 months that Jews had no reason to be concerned and that these marches pose no threat towards them. Obviously this has been a lie. The police have admitted it, the video demonstrates it.
I imagine that many Jews have felt gaslighted over this. No denying it now.
The issue with the police isn't that they have correctly identified the threat to his safety, but that they threaten to arrest him because there is a threat to his safety.