@KawaiiMajinken I mean, it's a tired old archetype I've never really seen add anything to a story ever, humor included. Almost anyone in a manga who is any flavor of queer (or whatever the fuck you're supposed to call them nowadays) has their entire personality reduced to "they're comically insistent about wanting to fuck people of the same gender" and 0-2 additional gags, tops.
Also, if you've been around people who aren't heteronormative IRL, you'll very quickly notice that a fuckton of them are interesting people even when the subject of sexuality doesn't come up at all, so making so many of them this boring feels like canyon-sized missed opportunities, which can grate after a while.
I mean, he and I have only ourselves to blame for letting ourselves expect better from a harem isekai manga, but some things just demand to be bitched about regardless.