The video of Kessler getting run off is pathetic and is proof of why these "unite" rallies will always fail. We need a single group, that grows and becomes preeminent over all others via its own strength and with a clearly stated platform, and such a group that can defend itself.
The NSDAP showed us how to come to power. They already learned from the mistakes. There's no excuse for us making the same ones now all over again.
"Any meeting that must be protected by large battalions of police discredits its organizers in the eyes of the broad masses. Meetings that can only be held when a large police detail is present, have no attraction for others. Obvious strength from one’s own side is necessary to win over the lower levels of society.
This turbulent period compelled us to take protection measures into our own hands. We could not count on official protection. On the contrary, experience had shown that when officials intervene, it never benefits anyone except those causing the disturbance. The police would bring the meeting to an end after any disturbance, and an end to the meeting was the goal of the hostile intruders.
In fact, the police began using a horribly unjust method of control. If the authorities receive a threat or otherwise hear that a meeting is in danger of being broken up, they do not arrest the one who has made the threat, but forbid the innocent parties from holding their meeting. The police mind sees this piece of wisdom, shocking as it may seem, as a proud piece of police work. They call it a “preventive measure against infraction of the law”.
This means the determined gangster has the power, at any time, to make the decent person’s political activities impossible. In the name of peace and good order, the governmental authority bows to the gangster and asks the other party not to provoke him.
So, if National-Socialists wanted to hold meetings at certain places, and the trade-unions declared this would lead to resistance by their members, the police never considered even the possibility of putting these blackmailing crooks in jail but instead forbade us from holding our meeting at all. Indeed these instruments of the law even had the incredible shamelessness to send this notice to us in writing on countless occasions.
If we were to protect ourselves from such censorship, we had to make sure that any attempt made to break up our meetings would be rendered impossible at the start."
-Mein Kampf, Page 330, Ford Translation