Now now, calm down!
This isn't nonsense, it may not be true, I haven't explored it. But it isn't nonsense.
This isn't nonsense either
More harm to the kids, you're probably right about that, at least younger ones. More harm to the wider community is more debatable. You may well be right, I don't know. It's certainly not nonsense..
I don't know about contradictory -- that would make it nonsense! But there are probably grey areas and places where there's room for judgement and discretion. I think you're probably right to suggest that this is unavoidable at least without taking one of your two extreme positions, but I haven't maybe thought about it very hard. See what others say.