Midwestern emo is all the zoomers who took the wrong lessons after hearing real emo bands like Sunny Day Real Estate, the Get up Kids, The Promise Ring, The Juliana Theory, and shit like that
They take all the spicy chords, jangly tones, and off time signatures, and use none of the emotion, hooks, or any of the good shit those bands excel at
Generally people mean American Football, TRSH, The Brave Little Abacus, Kittyhawk, Heart Attack Man, etc etc
They all fucking play Jazzmasters and high chord inversions with ringing dissonant open notes in them over and over again without any of the groove, songcraft, or dynamics of Sunny Day Real Estate or Get Up Kids or any of the legit pioneers of the genre. Notice how they take the basic sound and idea without any of the heartfelt emotion or hooks of the original bands;
It's an entire genre of zoomers pretending to understand a music movement when they don't understand it, and larping as it, and wearing the genre as a skinsuit