Maybe it's just me, but it doesn't seem like that much to require that:
> A person must not participate in a public assembly that may reasonably be expected to lead to a breach of the peace by: > > (a) the serious disruption of the movement of persons or goods or the serious interference with trade; > (b) the interference with the functioning of critical infrastructure; or > (c) the support of the threat or use of acts of serious violence against persons or property.
I think it's possible to respect that approach, but still be mad as hell and get your point across.