[SherlockeHolmes]

Disclaimer: I don't agree with your conclusions regarding general needs and instincts (of human) and that a human possess abosolute/built-in/DNA-engrained inabilities (therefore, I do believe a human can fly). I also don't agree that Facebook is to share much of the blame for the chaotic human zeitgeist present today. I do believe a human is highly malleable and impressionable, and that these qualities have been exploited historically at various scales for various reasons.

"There is no vaccine yet for this."

There may not be any vaccine, but there may be a cure. If we change the language used to communicate within a setting/platform such as Facebook, possibly by using a subset of the language previously used or by adopting a more Formal construct.

But Facebook is a virtual neighborhood, with greatly increased bandwidth and range. It is difficult or impossible to achieve it in their settings.