but religious people ARE idiots/wrong/dumb (take your pick)
I don't believe that. There are parts of religions that seem pretty unbelieveable, but that doesn't make religious people idiots, wrong or dumb.
People who constantly insist that all people who belong to a certain group share some stereotyped characteristic seem ignorant and fundamentalist to me, no matter what side they take about religion.
It would be like someone insisting that all trans people are gay, no matter what evidence there is to the contrary.