I don't know Pewdie Pie either, just the name - never seen a video. Don't know Heath Ranger and Alex Jones is so loud and annoyingly self-centered and sensationalist, that I haven't ever watched more than a couple minutes in total of anything he is in.
I use YT for troubleshooting - If I need to learn how to do something like reset my wife's phone or build a wall, I will go to YT.
There is a lot of DIY help available on there, and yeah I agree about Alex Jones, he was part of the problem, seemed he just liked to stir the pot, and never really offer any solutions.
The Health Ranger was/is Mike Adams I believe, he was a doctor (regular MD type), that also spoke about alternative therapies.