>with all of the negative pejorative that word entails
Maybe try engaging with the people instead of lumping everyone together? ACG culture is not niche anymore. There are literally big concerts with Hatsune Miku all over the world.
Sad I have to disclaimer this: I am not a fan of Hatsune Miku.
> weeaboos
What a sad, reductive take. (Not to mention most of the fans are Japanese themselves.) It would do good by you to go outside and get to know folks who have dissimilar interests than you.