Part of protesting is the PR campaign, You have to convience outsiders that your cause is right.
And that is where these protests have failed. They have failed to convience outsiders that their cause is just and they give sympathy to the other side.
IMO if they want people to be sympathetic to their cause they need to draw the other side into doing things that make them look sympatheic. Calling women Shiksas, calling IDF soliders Nazis is not the way to acheive this