From my limited world view I believe that humans have protested since two or more of us have gotten together. Someone had an idea and needed to be heard. Good and bad protests have shaped us. Good and bad people protest and to them their beliefs are true and need to be heard. There are many ways to protest. I support protesters and those who protest protesters. Though in my belief no violence or harm to others, including property, must be used.
Please visit the Youtube videos below. I took the liberty of linking and appreciate the work of those who posted the videos.
Protest Art Youtube https://www.youtube.com/results?search_query=+protest+art
Protest Songs Youtube https://www.youtube.com/results?search_query=+protest+songs
Protest Speach https://www.youtube.com/results?search_query=+protest+speaches