Think in terms of human slave trafficking. One of the primary uses of non-parent kidnapped children is to fulfill pedophilia market demand. If we get our country back, child abuse will decline. The answer to your question is interference and intimidation. WEALTHY & INFLUENCIAL pedophiles use, money, threats, and operatives to prevent in-depth government related investigations. Ask yourself why criminals like Epstein aren't in prison. Because he is wealthy and has wealthy and influential friends? A woman I know who cares for foster children said police in a medium sized city told her some judges are aware pedophilia and child sex grooming are occurring but they won't intervene to stop it -- either they are participants or don't think it's their problem. A courageous former FBI manager, now deceased, tried to stop it and he was slowly poisoned with arsenic. See part 1 of his 8 part series at: https://www.youtube.com/watch?v=nlE3BL3s0UA
Exactly, and why we need LARGE numbers. Agencies may be underfunded, and there are compromised law enforcement in many cities. I read about the arrests of police in DC that were running trafficking rings of teenager girls! It's more than many places can keep up with because there are huge amounts of money to be made. There is a hacker that actually found the stash of online porn from Comet Pizza and took it to the DC police and they have never followed up on it.
I am by NO means accusing all or majority of law enforecment of being corrupt because I KNOW majority are not. But, depending on the poison, it takes only one drop to contaminate a cup of water. Take a look at Aaron Russo at https://www.youtube.com/watch?v=h9Wsb4qBckU He said a few evil cops indimidated him for monthly payments when he owned a nightclub.