American Christians are biblically illiterate. I'm semi-literate. But pointing out as a few weeks ago, as the press did, that many Christians don't know a lot about their faith is a little off. It doesn't take much to point out how many registered voters don't know the name of their mayor, or state legislative representative, or senators. And they probably voted for the person! Yet voter ignorance does not negate democracy, or suffrage. It's just part of the deal of universal suffrage, and laws against poll taxes, that dummies will vote.
And likewise, the unwise pray.