Protestors don’t have the authority to police themselves, but you seem to want to trivialize their cause because you disagree with the actions of some.
Wanting an accountable police force that does not brutalize those they are sworn to protect is a reasonable request.
End qualified immunity.
The fact that there has been a large amount of violence committed by the police against peaceful protestors and press serves to generally support the cause of the protestors. There is a large amount of video evidence you can see for yourself as well as many protestors have been interviewed repeatedly.
Perhaps listening and reading instead of asserting or injecting your own uninformed opinion would lead to more answers.