Some commenters here need to place phone calls to some of the local politicians and askanim regarding the closing of streets for major events. In reality, when there are such closures, there are authorities around to help the situation. Emergency vehicles get rerouted, and are notified well in advance. Inquire from Hatzoloh if you wish. Even short notice events such as levayos R”L are handled professionally.
Without regard to the cause, just flooding the streets with crowds of people is criminal behavior. They may stay out of the street and chant their message. The media will report it, don’t worry. If some are deluded into believing that the degree of imposition and inconvenience is related to the success of the protest, take the action to the places that are directly involved, such as you police stations, government offices, etc. Get out of my street.
You do not have a Constitutional right to block my access to public property, not my sidewalk, street, shuls, etc. The location is determined not about where it has most impact on the subject matter, but on the degree of inconvenience and disruption to the public. Get outa there. It is not about the subject. The Chazon Ish referred to “Yehoreig ve’al yaavor”, not “Yaharog ve’al yaavor”. Big difference. You may be moseir your nefesh, not mine.