Really, what I think we need is an arc where the hero association is the antagonists, outright.
Agreed. Part of me wonders if it is possible the final battle will be a three way war between Deku and friends, the hero association, and Shigaraki/All for One.
1) Stain, his followers, and most of the villains in this series so far have predominantly argued from the perspective that the people who go out to pursue the hero occupation are dishonest frauds who don't "deserve" the distinction based on arbitrary definitions of the concept, with Stain in particular believing that only All Might (and Deku) are worthy of being called heroes - all of these being motives that sort of run in opposition to one another.
This is a really well written post. Just wanna say that first.
On the subject of Stain in particular, I hope that when he returns to the series, Hori doesn't try to argue that he was in a roundabout way, right about hero society.
I want someone to say to Stain's face that he was totally and completely wrong, and literally everything he did just made things worse for everyone.