My suspension of disbelief is getting strained hard when this arc is awash in essentially men with vaginas mob characters, only to have the main girl characters to be traditionally attractive by typical harem standards. The inconsistency kind of kills the story immersion ngl.
Maybe don't take it so literally. Not everything holds up to examination if you take it at face value.
Manga is not a perfect representation of reality (even a fictional one, as contradictory as this may sound), and is not meant to be. By necessity it is a caricature, a translation of fiction, a distillation of key traits of persons, events, and places into what the medium can deliver and the target audience can follow. In other words:
These are storytelling tropes. The manga-pretty girls mark the potential interests, romantic or not, the buff ones mark the population noise that exists but may or may not be of relevance, maybe even a mark of danger. They're exaggerated stereotypes to highlight roles in the play transmitted by a medium that consists of static panels of black lines on white background and where everyone is one of three different face shapes for ease of drawing.
Same reason why on original Star Trek incoherent blinkenlights where believably futuristic enough and why their Klingons could get away with being Romulans (well, before the fanboys who couldn't read between the lines needed to be wanked off with some weird virus lore to explain the new rubberheads of TNG, or worse yet, Discovery). They are just design elements there to help tell a story. Try taking it easy and enjoying the play, rather than worrying about technicalities of the medium to the point of being unable to stay immersed in the story. Wouldn't want to sit next to you in
Pirates of Penzance if you couldn't get over the facts that everyone sings and how the rocks are just paper maché.