Internet is a big mistake, fucking big mistake.
If earlier pedophiles were isolated from society, they were outcasts, now, thanks to the Internet, they can create various communities, forums, etc, and promote their ideology that - "fucking and love children is good"
They can easily share their pedo content with open and crypto programs like GPG.
And without the Internet, it was more difficult to buy child pornography, now it’s much easier.
And don't forget, If there are people who want to buy something, then there will be an offer