I’m not a professional entomologist nor a lawyer, but I think you’ve given yourself trauma or you already had trauma and this has reopened some old wounds.

At the end of the day, this sort of stuff is sensationalized, as these types of things are all about making money and attaining some degree of fame for the people doing these “shows”. The crimes and perpetrators, while it seems as though there is a never ending supply of them, are actually statistical anomalies. There are 8+ billion people on Earth. Some number of those people have 6 fingers on their hands. If it were profitable enough and enough people were interested in the topic, you’d see thousands upon thousands of videos and shows about people with 6 fingers. By extension, after seeing enough of that content (you don’t even have to watch, just knowing it’s there is enough) your brain will actually start to think having 6 fingers on your hands is fairly common. You might even start paying a lot more attention to peopes’ hands, taking time to actually count their fingers just in case, or wondering how many 6 fingered people you’ve encountered over your lifetime without noticing. You might even convince yourself that you had a kid in your 2nd grade class who had 6 fingers or your hairdresser’s brother-in-law had six fingers.

I guess my point is, if this whole thing has gotten to the point where it’s actually affecting you in real life (ex: stopping going on dates), then it’s a problem. If you find that you can’t stop exposing yourself to this kind of content, I would advise you to seek professional help if you can.