Like in the new IT. Exact same thing between the bully Henry and Mike. In the book he’s explicitly really racist isn’t he, and the original TV series, but in the film it’s kind of danced around and he doesn’t say anything beyond “Stay out of my town” or something.
TBH, I can kind of see where the Duffers and the director of IT were coming from, 'cos there’s been a few instances last few years of white writers having their characters say racist things that, even tho the intention is to make an anti-racist point, they’ve been absolutely dragged for. On the other hand…IDK. Why bother including it as a subplot if you aren’t going to have the character be explicitly racist to confirm “this character is bad”. Makes me think they were aiming to make the step brother racist on top of everything else but maybe they decided he’d be good for a redemptive arc during season 3, a la Steve, and viewers are conditioned to know now that characters who are racist are beyond redemption but bullying a small girl in a kinda creepy way can be fixed?