The demand for child sex is fueled by porn & fornication which in turn comes from decoupling sex from procreation, marriage, and family.

Ultimately, this has its source in idolatry and the rejection of God.

We're being shown in real-time the logical progression of liberalism. Rejection of Jesus -> Rejection of external divine authority and law -> acceptance of internal authority and do whatever I want -> acceptance of birth control -> sex is for fun -> acceptance of divorce -> acceptance of baby murder -> acceptance of child sex etc. etc. etc.