>>>I don't know the answer to this worldwide phenomenon, but doubt that the answer is a secular one.<<<
Probably not the full answer but may be part of it. Prosperous couples don't care to bring children to a society dominated by children neglected by parents who can't afford them. I don't recall massacres with assault weapons, drug deals and rapes being regular occurrences in public and private schools 10-15 years ago. Something has changed.
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