You are ignoring the elephant in the room: the media environment that artifically inflames every single incident that involes a jew, no matter how small. This creates a fake perseption that if something bad happens to a jew in australia, that means that every single one of them around the world is in danger.

Similar to how school shootings in US are inflated to the point that every school has to create measures to defend against an active shooter.

Do this poisonous media tactice over decades and inflate the danger and you will make people pretty nervous and trip them over the edge