I understand. I agree, many people are ignorant. What I'm suggesting is that for many people, informing them of the truth doesn't magically make their beliefs go away.
There's a mountain of evidence which shows that people reach conclusions first, and then adjust their reasoning to fit that conclusion, rather than the other way around. Those initial conclusions are typically a result of emotional impulses.
It's not a lack of education any more than American obesity is a consequence of people being unaware that McDonalds is bad for you.