I believe that among a minority of people, reality always speaks much louder than teachers and news media. And reality can be discerned or cognized from prior knowledge and principles even if not directly taught.
So my hope is that within every cult, within every brainwashed group, some people (like Neo in the matrix) are born who can see through the bullshit and escape and/or better yet, work to turn their society back towards reality. Many of us who grew up in church-cults and escaped know that bat-shit-crazy-dogma just doesn't stick in the clear minds of smart people where reality purifies.
And it is much easier when there is a counter-culture to escape to, people who sow the seeds of doubt.
The sad thing is how many people never escape, never wake up, and the years of waste believing in dumb ideas that get you nowhere.
The said thing is, In the case of America, the generations of inner city black kids who continue to live through horrible circumstances because the current dogma misdiagnoses the problem and shames anybody who points that out [for example]. Or here in New Zealand, where the race issue is thick, where Maori are much worse off than they were in the 1980s and yet they blame it on colonialism which (let me quickly check, ah yes) happened before the 1980s.
My point is just that we won't all drink the kool-aid.