That may or may not be the case now, but it certainly isn't true historically. There's a reason why "What do we want? Something! When do we want it? Now!" is a protest cliche.

Grassroots activism used to be better organised. Trade unions and other working-class organisations provided structure and institutional expertise. Discontent could be directed as part of a broader strategic campaign. The atomization of society has diminished the influence of these organisations. Most activism today is disorganised and strategically inept, simply because the instigators are inexperienced and lack the support of a wider network.

It seems our means of communication have grown beyond our ability to organize through those means. This seems to be a trend with the Internet in general where arguments like gamer gate etc. are fractured into two sides, but even on each side you won't find a coherent set of ideals that unifies.

I believe cases like these are just spotlights on how different we as humans tend to think while assuming those grouped around us tend to be more similar than in actuality.

Well that and the systematic destruction of unions in the US that started in earnest under Reagan.

Organizations tend to be organized and have specific goals. But mass protests rarely come from a single organization. They come from an angry populace.