Lifelover led by misfortune

So, what am I?
A bad case of reverse schizophrenia
the imaginary friend of everyone else
a soulless terrorist with a message to spread
with the worst upbringing possible and no emotions
I want others to hit rock bottom as well
Get in touch with their inhuman instincts
and do hard drugs, be a free spirit
become enlightened, become criminally insane
You need me, and I need you to be like me
We're the scum of the earth with nothing to lose