That sounds like an omegaverse version of "Zettai BL ni Naru Sekai VS Zettai BL ni Naritakunai Otoko" and I'm all here for that lol
I did think about that when I wrote this LoL. We need an omegaverse version too.
I also thought that :)) while it’s not exactly the same https://www.mangago.zone/read-manga/exclusive_no_love_zone/ this story is very similar to what you described. One of my favorite omegaverse stories. Mc is a Beta (that stays a beta) who’s just done with all the alpha omega drama around him and just wants to go on vacation (⌒▽⌒) I think it’s pre funny and well written. Talks a bit about Abo prejudice and other stuff as well. No SA and great characters too ヾ(☆▽☆)
Being an absolutely normie beta from a beta-for-generations family, like an absolutely boring person. But somehow, this beta is always, ALWAYS there at the climax of every ABO family drama ever. As a student in the background, a part-timer at a store, or just a bystander walking at a park, he's somehow first-row to almost all drama. That'll be funny one.