the problem with this particular event - and it has a history of this - is that it attracts actual nazis seeking literal acts of genocide and violence.
it's a nazi parade. that's not hyperbolic, it's the literal truth.
canada is not the united states and our laws are not the same. we don't allow the incitement of violence against identifiable groups, because that's how fascism starts. these laws are rarely to never enforced, but this quds day bullshit is exactly what they were written to prevent.
the police need to make some arrests, here. clearly. it may only result in summary charges, but the point is to identify who these people are and ensure the police have a record of them, not to throw them in a cell.