pewdiepie is not actually that funny
he overuses the same jokes over and over again and does the same thing over and over again because that's what his viewers want
it's not necessarily a crime to do what your viewers want, but if you're doing it just because you know it'll get you more publicity or whatever, it's bad.
speaking of his viewers, they're mostly or all dumb.
giving them the label of "bro army" oftentimes makes a psychological obligation to treat it as an actual group you are in that you must defend
the same thing can be seen in political parties, for another example
and also i suspect at least 95% of pewdiepie's fanbase consists of weeaboos and kids in middle school (probably mostly the former) and so that makes them even dumber
