whats up with the kingcobra stuff my cousin who is 14 years old is obsessed

He has never been able to connect with people hes socially sucks and is all around awkward so he gravitates towards online content. He recently started watching kingcobra videos from a few years ago. Watch it for hours and hours in a day, all he can think about is it. He displays cobra-esque mannerisms, which is kinda annoying lol he is high functioning autistic and has otherwise been very active and adventurous I just dont wanna see this be the tipping point for him to spiral into a dark internet ritual