Just to clarify things a bit. That Cracked article isn’t a blog post or essay about how people are petty and insecure. It touches in a colloquial manner several serious insights into how human relationships work, and it lists five things that, mostly subconsciously, affect human interactions.
If these things make you think that people are secure, it’s because, for the most part, people are insecure—not in the personality trait sense, but in the sense that historically, it is very hard to survive in the world as a human being and secure the things that make life comfortable, and also make life possible. Historically, humans lived in insecure environments, so human psychology, as a matter of survival, is to some extent based on worrying about insecurity.
Just to take a look at one of the points the article touches on:
“#4. You Accidentally Asserted Power Over Them”
The issue of relative power dynamics in interpersonal relationships is not just an issue of someone being “petty and insecure.” It’s a deeply ingrained part of the human makeup and has to do with how we evolved and survived over tens of thousands of years.