At the rally one could see this sign to "globalize the Intifada," a call to attack Jews worldwide.
Even more explicit were these signs for "Palestinian return" and "Palestinian liberation" - "BY ANY MEANS NECESSARY."
"By any means necessary" means "including murdering Jews." It isn't even a dog whistle, it literally justifies terrorism.
This is incitement to murder Jews being proudly displayed in the city with the world's largest Jewish population.