Pretty much this. It has nothing to do with Japan nor do any of them actually know or give a shit about any part of the Japanese culture beyond what they see in anime. And 98% of anime and manga is about some socially weird retard nobody that suddenly finds out he's actually really cool and special and has special powers and now everyone is enamored by them and also titties. That's literally the autistic/maladjusted weirdo dream. There's also an entire concept of people in Japan who retreat into a room in their parents house and never come out or have to work or anything (which is literally just the typical young American lifestyle now, but they think it's accepted there....even though it's accepted here which is why they do it). Plus it's cOoL FoReIgN but not like, actually foreign like Sri Lanka or Nigeria or something, cause I mean they make the vidya and quirky food (instead of dog, or whatever trash they eat in India).
Plus, you know....pedophiles.