[xupybd]

Perhaps the original post was not saying atheists are monsters but to encounter a massive challenge to their world view at a young age, may disrupt the comfort of children? Children are wrapped in the bubble of comfort by the boundaries they're raised in. When you mature you question those boundaries and find your own way in the world. But during your early years you may lack the maturity to challenge the foundation of your world view. Being exposed to other ways of thinking may lead to anxiety. It's only a recent thing that people have been so easily exposed to ideas from outside of the creed they were raised in.

But I don't really know, just playing the devils advocate.