You are right that there are tons of crazy evil shit going on that is unknown, i'm sure saw type of shit really happens, theres all types of slavery etc, people are sold for body parts etc. It is fucked up.
Buuuut, its not really that "media" is someway keeping it happening or part of it, i'm sure all that would be reported instantly if there was evidence, its just that most investigative jouranlists still want something more than the idea before writing stories. The "news media" is pretty much copy paste of just events that has happened publicly anyway with the whoevers choice of words making it usually left or right appealing. Sadly there is also very little of the investigative journalism happening. But every now and then something is properly digged up.
To be honest I dont know what people even want from media anymore, its easy to blame, but then when people are trying to fact check and do things properly half of the people call it fake news and just reads their version from a conspiracy site without any fact checking.
I wish that there is still a world left when we are old just to see how this all turns out. When you think about social media is just been around for a bit over 10 years, so what happens in 20-30 years.. is it just gonna get worse or are people actually starting to use their brains. Brains and humanity doesnt really go hand in hand, so I'll guess its just gonna get worse :/