This was a Critical Mass event, which is why the bicyclists are taking up all of the street as a way to reclaim the streets and protest the lack of safety for riders under usual conditions. It’s not legal, but protests are never useful if they’re fully legal now, are they.
Street racing is not a political protest.
Please keep in mind that arguments made in bad faith are uncivil and thus subject to removal under rule 1.
Per the person I was responding to:
They are not engaging with it as a protest, but as a parade, and I am trying to meet them on their terms.