I'm not aware of a major child porn problem on Facebook. It is a dominant social media platform. You make it sound like it is rampantly abused by a bunch of pedos to share images of naked kids, when in reality the problem is mostly teens sharing photos of themselves with friends or other teens sharing photos in message groups. In one statement you mention not letting their software near their computers, presumably because of privacy issues but in the next you indicate the the only solution would be to enact more spying and privacy intrusion.