I'm beginning to think that evangelism should be regulated, the same as how we regulate advertisements aimed at children.
Reading that second article linked, I find it disturbing that they're repeating the same old nonsensical schlock that a lot of evangelicals like to recite about how secularists shouldn't care what their children are taught "because it won't matter once they're dead". Pure sophistry. Beliefs can be perpetuated just like anything else, and wrong beliefs are far more harmful than these people would have us believe.
Especially telling: "Each lesson uses a black heart to vividly symbolize a child's inner self. The black heart impresses children with a deeply personal sense of their own inadequacy and sordidness."
This doesn't symbolize anything except how utterly despicable these evangelicals are. Take a child, shatter their self-esteem with such tripe, and of course they'll cleave to your beliefs if it lets them reclaim it.