At heart - what keeps most of the populace astonishingly ignorant?
No, it's not under-performing public education, it's neither robber barons nor Wall Street, it's not biased media, it's not Hollywood, it's not the internet, it's not racism, it's not corrupt and inept political leadership, and it's not lack of opportunity or money. While all of these may play a small part in keeping the vast majority in ignorance, something far more powerful, sinister and devastating is at work.
The simple truth is that it is a catastrophic hardening of the heart produced by sin that causes ignorance (Eph 4:18) - "They are darkened in their understanding, alienated from the life of God because of the ignorance that is in them, due to their hardness of heart."
And it's a dangerously foolish ignorance that ironically declares itself wise (Rom 1:22). There is only one Power that can free us from this inborn, fatal ignorance (Luke 24:25; Prov 2:6). Everything else is futile.