Protests work. History shows mass action forces change. This event however is not a protest. It is a parade. Parades (like other events BBQs, picnics etc.) have their place for morale and recruitment but they are not political weapons. Confusing spectacle with action harms the movement.

Real protest needs specific actionable goals. It needs a strategy for disruption that hits capital where it hurts. It needs a plan for escalation when ignored. It requires a solid organized base ready to act. This event has none of these. No Kings is not a demand. It is a slogan without a material target (and even if it was the fact it drops the kings label in countries that retain a monarchy really is kneecapping itself).

Contacting congresspeople accepts the bourgeois state as the solution. They serve capital. Begging them for change is a dead end. Permits mean the state approved your dissent. That is managed opposition. There is use here though. Meeting organizers builds networks and recruiting is possible. But calling this a protest pretends action is happening when it is not. It funnels revolutionary sentiment into harmless spectacle. It dissipates energy rather than concentrating it. Do not mistake spectacle for struggle.