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.
nutrition ... pleasure is not the purpose of eating but is there to encourage it bc nutrition is so important.
to make eating about pleasure is like chewing up food and spitting it out.
to make sex about pleasure morphs into horrors like rape, pederasty etc.