This describes some but by no means all if we look at history.
One bad apple
spoils the entire bunch...
People usually forget that last part, or completely ignore it. Of course we like to think we are not selfish, self-centered, arrogant and vile creatures because that hurts our fragile egos, and it convicts us to think about ourselves in a critical way - which is painful for people who are not
forced to confront themselves on a consistent basis.
We wake up every day and
know there are a myriad of people who are less fortunate than us, we ignore the fact that massive amounts of people are being tortured, murdered, raped, or abused at this second, we ignore the fact that tens of thousands of people find life on this plane of existence so bad that they decide to murder themselves rather than "seek help". We continue down our own selfish paths with rose-tinted glasses, and then we admonish and reject people who have the audacity to tell us.
We have the audacity to behave as if our success was our own, or that others' "failures" are their own. We are 7.5 billion strong, and somehow the vast majority of us feel
alone. And, that is just the
present, or history (seconds ago).
We lie for fun.
We judge others based on skin color.
We judge others based on the clothes they wear.
We murder.
We revile people who we do not agree with.
We ignore the significant trauma and tragedy in the world and pretend blue skies and flowers equates to "so much beauty in the world".
We seek attention and recognition at the expense of others.
We blame others for their less-fortunate positions.
We worship humans that only seek to commodify us and profit off of us.
We scoff at anything that makes us feel uncomfortable, or challenges our
fundamental thinking.
And that is just being nice. The internet is a place where people can deliver their true personality - what is in their heart - without much accountability (or, with a lot of anonymity). People who let other people manipulate and abuse other people are just as evil as the ones who abuse; we romanticize our evil too much, which is why we are so easily exploited and we repeat our ignorant mistakes every century.