In religious and in secular affairs the more fervent beliefs attract followers. If you are a moderate in any respect - if you're a moderate on abortion if you're a moderate on gun control or if you're a moderate in your religious faith - it doesn't evolve into a crusade where you're either right or wrong good or bad with us or against us.
When you think about it the end of the world is a little bit like death: We all know it's going to come eventually and as we get older we feel we see the signs more and more distinctly.