I don't want to blow your bubble, but I highly doubt it's only 22% of the people who are stupid.
In fact I think that approxiamtely 80 to 90% of the total population of any nation on this earth, are blithering idiots, no matter what they believe in, or what they refuse to believe.
And to add to the other part of this discussion: Religion is a concept that should have been ditched in the Renaissance, as all it did from then on was slowing the human developement down.
Of course, most of the times before the Renaissance, most of the cleric activities revcolved around oppressing and torturing people, but back then, at least convents where places where actual practical research was done.