I'm not quite sure what point you are trying to make here. Perhaps you could address it specifically with respect for the "No KIngs" event last week. Yes there will be individuals (like me) who just show up, There will also be organized groups whose members feel strongly about the issue and show up as a group. Overall, the demonstration was initiated by a loose coalition of progressive organizations like Move ON, the ACLU, etc.
Do you see this as a problem?
In the context of our current culture, which is "activists in search of a cause", where many will get on board with anything in the name of "activism for activism's sake", yes, it's a bit of a problem.
Primarily, because it can distort perceptions about how popular or unpopular an idea actually is, and that perception of popularity level can cause people to hide their true opinions (out of fear of consequences), or adopt opinions that aren't actually their own (thinking that there will be self-serving benefits and adulation associated with doing so)
Both of which can distort the organic political process.
As we've seen over the past few years...
There are positions that people were afraid to express, because based on accounts of protest sizes (in the names of certain causes) via the crowd counting consortium, social media boosting, and mainstream media reporting, they thought they were the fringe minority and felt they needed to keep their mouth shut (or pretend to hold the other position), else face social consequences.
When, as it turns out, their true organic position would've put them on the winning side of 80/20 issues if everyone else was more candid about their true positions rather than being a slave to perceptions and what "they think the answer others want to hear" was.
"Group think" is a powerful force... manufactured group think is even more sketchy because you end up with a bunch of people who are in the 80%, being falsely led to believe they're in the 20%, and causing them to modulate their speech and behavior.
So you end up with a bunch of people holding mainstream majority opinions, tiptoeing around on eggshells because they've been made to believe that their view is the fringe.
There are books delving into the subject of "The Tyranny of the Minority" (and no, that's not referring to "minority" in a demographic sense, it's referring to how people who hold a minority viewpoint can convince everyone else that everyone actually agrees with them using bully tactics, and disagreeing them will make one an "outsider"...and that's the fear mechanism used to get others to "fall in line")