The problem (Yes, Virginia, there is a problem) is that the "Teacher College"-based educational establishment tends toward "one size fits all" theories, and they put all their reading eggs in the "Sight" basket. This has had the effect of putting the dream of universal literacy, especially among the lower middle class, way behind the 8-ball. My community College kids are just as "smart," as anyone on this planet. Their inability to really read effectively is enough to make an old man (me) weep!
It is very interesting that in O say, 1920, most American "educators" were "conservative," and tended to belong to the Republican Party. The Communists very deliberately and consciously set out to change that.
Newsflash! In the brief span of 25 years or so, they succeeded beyond their wildest dreams.