I'm always skeptical of people who claim wide swaths of the population are narcissists, it always seems more like an admission of being unable to get along with others than a verifiable fact supported by real-world evidence.
Beyond that, when someone seeks to attribute any sort of undesirable behaviour in others to narcissism instead of considering that they may have understandable (if not justifiable) motives that go beyond just serving their ego, it tends to scream this person refuses to consider others perspectives before making judgments about their motives which, if I'm not mistaken, is the sort of behaviour and attitude one would associate with narcissistic ways of thinking.
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When a clown moves into a palace, he doesn't become king, the palace becomes a circus.
"Many of us like to ask ourselves, What would I do if I was alive during slavery? Or the Jim Crow South? Or apartheid? What would I do if my country was committing genocide?' The answer is, you're doing it. Right now." —Former U.S. Airman (Air Force) Aaron Bushnell