the birth of an amendment

I don't usually get involved in Critical Mass debates, because they end up devolving into arguments like this, in which we're trying to decide whether bike riding is constitutionally protected.

Cars should not have a greater right to "peacably assemble" than those who are "redressing grievances." This mafia is the police who tell protestors that they are "Obstructing traffic" as they are "redressing grieves" in the public way. Whose right to assemble trumps?

I think, physically speaking, cars become agents of censorship (sooner than they become agensts of manslaughter), and therefore need to be re-evaluated on constitutional grounds.