I understand what you are going on about. I get why you are disgusted. It's fandom. i'm a furry I hate the majorty of the "basement dwelling obsessive furs" that do nothing but try to white knight us when all we need is to shut up and keep our heads down, then people will simply forget about us and move on.
Minecraft is fun. Personally? I love to build super huge structures for other people to explore. I enjoy all that. I even used to watch lots of SSoHPKC's and Nova's minecraft stuff. I love watching LP's but as time went on they grew to be the same and grew boring. Like any...normal, not super obsessive person I grew out of it essentially.
It sucks that it's still such a big deal on some peoples channels, obviously it's to the point where RT can't put out any new videos without a bunch of 6 year olds crying for more minecraft. However, that's the life of a popular you tuber, no matter what content -you- want to put out your fans may very well want something different.
that being said, minecraft exploded. It exploded becuase what it became is 3d vurutal leggos (EXTREME EDITION) with a infinite amount of creativity and exploration to be had. Instead of spending $5000 on legos so you can create a 1:15th scale car or something, you can just build it in minecraft on a 1:1 scale for free! Only costing your time. I am sure you understand why that is so appealing to everyone.
Again I was in my last years of highschool when this shit really boomed out into what it is, but there is nothing you can do. Be sick and disgusted. Sure. Or just shut up and deal with it like the rest of us. :/ The machine will do what the machine wants to do.