How social media creates the "majority illusion":
https://www.technologyreview.com/s/5388 ... your-mind/
And the majority illusion can occur in all of them. “The effect is largest in the political blogs network, where as many as 60%–70% of nodes will have a majority active neighbours, even when only 20% of the nodes are active,” they say. In other words, the majority illusion can be used to trick the population into believing something that is not true.
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That might seem harmless when it comes to memes on Reddit or videos on YouTube. But it can have more insidious effects too. “Under some conditions, even a minority opinion can appear to be extremely popular locally,” say Lerman and co. That might explain how extreme views can sometimes spread so easily.
Iow, don't let your kids befriend any popular SJW on any social media platform. They'll likely start believing that the SJW beliefs are what "everyone" believes in.
Fame is not flattery. Respect is not agreement.