....your average person simply cannot believe or rationalize that the world leaders and "entities in positions of power and influence" are psychopathic murderers and anti-human tyrants. "Oh c'mon man...they wouldn't do that!" is the standard thinking. Aside from that, most are too wrapped up and consumed with holding down a job, paying the mortgage, etc., and lack a reasonable world view and perspective on current events.
SOLUTION: People are going to have to be SHOWN evidence of what's going on behind the curtain....hard grueling gut-wrenching evidence. Plenty of evidence exists. Forget about whether people can handle it or not. We are at the cliff and it's time to shock people out of their slumber before it's too late.
The only problem with that idea is that by the time Joe Average feels the pain of that jackboot on their neck...it's probably waaay to late to do anything about it. If things do go dark, they're going to stay that way for a long long time. The time to mitigate this situation is here and now.