Oh, boy. How long have you got?
For brevity's sake, I'm just going to call the type of person who makes a big fucking deal out of PewDiePie a marxist. There's more to it than that, but as a shorthand it works.
Marxists have a satanic hatred of established order and natural law. If you look at a picture of them, they're always fat, slovenly, ill-favored dwarves and retards. They have ugly faces and/or slow minds and/or severe perswonality disorders, and as a result they can't fit in or succeed in normal society.
In the past, such people would have spent their useless lives as village assholes and nobody would ever have heard from them. Today, post Marx, they have what amounts to a trade union to organize them and collectively attack their betters.
Marxists have spent 150 years "deconstructing" everything good in the world. The desire to flip every value and institution upside-down morphs into a plain hatred of success, and eventually a hatred of the good in general. Destroying what is good thus becomes an end in itself.
This is the origin of Modern Art. It is ugly and hateful on purpose, in order to kill the good aesthetic and replace it with something so plain and ugly that even untalented retards (like them) could succeed at it. Modern music, starting with jazz, is also of this tendency. Modern architecture, modern dance, modern literature, modern communications methods like TV and movies, modern sculpture. . . it all has to be made as ugly and hateful as possible.
This extends outside the art world. Modern sexuality must "deconstruct" the transcendant glory of the spiritual connection between physically attractive male and female couples, and become instead a grimy, slithering mess done as casually as possible between interchangeable machine people, ideally of some oddball gender combination. Modern families are born in fornication and divorce, and they must be as full of fags as possible. Modern politics is a surreal adventure in which Rhodes scholars pretend to be country bumpkins to win approval from niggers and spics. Once elected, public service is never about a Roman-style patria, but feathering the nest and getting away with pederastic sexual assault.
Everything good must be made bad, and everything bad must be promoted as good. Blasphemy, adultery, child neglect and abuse, drug use, self-abuse, masturbation, profanity, laziness and sloth are – in the right context – celebrated as brilliant and admirable. Love and family, hard work, personal struggle toward self-improvement, fitness, racial and familial exclusivity, natural gender roles and the nation state are all bad, and if they cannot be destroyed outright, they must be filthied up and made as dirty as possible.
Where does PewDiePie fit into this? Simple – He's everything the marxists hate. He's young, blond and handsome, where they are short, squat and ugly. He's funny, and they are not. He's rich, while they don't know what money is made from or where their parents go to get it. PewDiePie has an amazing waifu, while the less said about their sex lives the better, I think. He is also unapologetically successful, which draws the honking geese like flame to a moth. They feel a magnetic pull to tear him down because he is not a titanic loser, which makes the losers of the world feel inadequate and small.
I don't want to make out like Pewds is an Aryan Ubermensch, though he plainly fucking is, but rather to alert to a tendency that has spread all over the world like a second skin. PewDiePie is just a high-profile character they're working on, nothing more important than that.
Of course it goes without saying that what I'm calling marxism is really just Judaism with pretensions to glory. Every single thing I've said about the ugly, sick-minded marxists is basically the same for Jews, who spread their filth as if by instinct. The yids know they will never really produce tall and blond beauties, or make people laugh at good, clean humor (Jew comedy is all about diarrhea and visits to the gynecologist). They know they can't make beautiful paintings or moving music, so they splash horse cum on canvas and call is "The Ascension of the Blessed Virgin," or some shit. They can't make lovely music, so they write one after another Nigga Muhfukkka Bitch Sux Muh Dik Make Munny Get Fuxx Nigga! rap songs and have their friends over at MTV turn it into a Grammy-winning ballad. This brings them a single evening of peace, when they can sit with their trophies and feel for a short time as if they've risen to the level of the European man in creativity, but the bubble always pops eventually, and they're reminded of what they can never be. PewDiePie is a daily reminder of this for them, and so he must be torn down.