The whole "herd mentality" narrative rubs me wrong. We are social animals. Of course we have group dynamics.
I find it similar to using "animal" as an insult. I am an animal why would I be insulted? Rhetorical question I know the answer. "Animal" is about dehumanizing others based on thinking that humans are somehow above other animals? Except I try not to reproduce that type of hierarchies. Also please call me animal, I kinda enjoy it.
If you engage in this herd narrative as a critique please consider critiquing democracy or mass media instead of dehumanizing others. Also please note that referring to such phenomenons as "tribal" mentality or thinking is racist.