Sometimes social change requires more effort than letters to the editor and musings on FB. Sometimes social change is needed and requires force in order to be acted upon.
Women would never have gotten the right to vote had Alice Paul and other women's suffragists not been willing to "stir the pot" and cause others some inconvenience.
Dr. Martin Luther King Jr. saw that simply writing letters and making speeches would not bring about the end of segregation. He advocated blocking roads, occupying "White only" lunch counters and boycotting buses. He was a pot-stirrer too.
The Founding Fathers of our nation were big-time pot-stirrers. Nathan Hale's "I regret that I have but one life to give for my country", and his willingness to serve as a soldier and spy are seen as acts of valor by our country because he was not willing to meekly request independence for our nation. He (and many others) demanded it, through force.
Sometimes stirring the pot and inconveniencing others are necessary for overdue reform and social change.
You listed some very good examples, but these days most of them don't even know what the protest is about, or what they want out of it. What exactly is their goal? I have yet to hear them verbalize in plain English what their beef is, how they have been wronged, and lay out a VIABLE solution.
We all know what is going on and who the aggressors are, and who is paying them to protest. There are huge differences between now and what has gone on in the past. People would protest in the past because they clearly understood their plight, not because they were promised money to go out in the street and cause problems.
This is nothing like in the past, they are nothing at all like our founders. Our founders wanted to be left alone to live as they see fit, not make other people pay for their freeloader lifestyle.
Currently, these protesters blame every problem they have on someone else, either living, or dead for 200 years, and want the current descendants of the perceived offenders to be FORCED through government to pay. I find THAT to be problematic.
You cannot have people who have not been offensed, to have others pay for an offense they never gave.
I think the people who are being protested against are more like our founders: "go live your life, and leave me alone"