After centuries of exposed religious charlatans, it should stand to reason, that people would be able to see right through them now. In times past, there were no radio, T.V., or internet, and newspapers were filled with only local news. Being BLIND to truth, and then blaming it on one's religious beliefs, is akin to claiming " innoscence ", due to not knowing that XYZ is against the law . That doesn't make it, in a court of law, and neither will claiming that because one was raised to believe in GOD, Jesus, what's in the Bible, any excuse to being rabidlly pro any charlatan, because he / she spouts Scripture. The Bible DOES say, that the Devil can repeat Scripture, far better than anyone else! It also warns against FALSE PROPHETS ! Two millenia ago, the faithful WERE warned against the likes of Hinn. : - )
Like you it seems really stupid when one thinks logically about it and perhaps that is what they can't or don't want to do.