At what point is action over peaceful protest, especially when supporting a terrorist organization and cause that has led to the murder, rape, and hostage-taking of Americans become terrorism itself. This action is intimidation, it is aiding and abetting terrorism. The terrorists should be rounded up, jailed, convicted, and given more jail. If non-citizen, they should then be deported.
A few well placed rounds or 18 wheelers would solve a lot of this.