Pedo hunter content is just acceptable sadism and humiliation fetish videos, really.
Wouldn't precisely call them two sides of the same coin but pedo hunters and other sadists like those monkey torture freaks absolutely see each other at the family reunion, so to speak.
My gut feeling is that if you satisfy what I believe are actual sadistic desires and pleasures with "justifiable" victims, then you are nearly always more likely to assume guilt when the possibility is presented so that you can indulge sadism again.
You gotta be like extremely self aware and self controlled to not let desires like that slip and affect your everyday moral judgements, and even if you are capable of that, I think its blanket unethical and immoral to indulge sadism with real human suffering.