Most often Negativity within is generated from the negativity of others without. The bad opinions (views based off of incomplete/wrong data) spread like a contagion because most people cannot think for themselves.
Most of humanity are brain dead zombies. Not because they were born that way. Rather, it was because a friend or family member of theirs was bit and unknowingly spread the disease. How many of us can say a negative person tried to hurt us?
Some of us succumbed to the bite, we became like them, zombies. Others fight the good fight. Thank with their own brains, and not try to eat the brains of others.
The Green Herb helps. For all those RE fans out there, you know what I am talking about.