Would I be wrong to, though, if you think about it? The Simpsons is animated in South Korea. This is one of those "is a hot dog a sandwich" type conundrums. Ideally I would tell someone looking for a good animated comedy to keep an open mind and try things both in and out of Japan. Not because I have anything against otaku who specifically want Japanese works, but because I rail against the whole concept of a "weeaboo ghetto" that we seem to culturally put them in to begin with. I think being a well-rounded person is trying everything regardless of source.
In any case, if you're going to narrow stuff down to only one country and one animation style and one storytelling style... and then complain about not having an abundance of a certain theme? That shortage is something you imposed on yourself, not the world and certainly not fans of the thing you're sick of seeing.
Anyways this is all a moot point because it's not even a shortage in the area the haters think there is one. I pretty much guarantee any gender bender manga written in the 90's or the early 00's pretty much never has yuri on the table. There's even entire chapters where the character says "now I can't love the person important to me anymore". I think I'd even seen that phrase as lately as Ayakashi Triangle? (though of course, that manga has yuri teasing like almost literally every GB manga does now, I'll at least concede that "yuri options" are almost ubiquitous nowadays)
I've given at least a half-dozen recommendations over the last dozen times I'd seen this from the same people. I've tried to be nice in the past, what you're seeing is me finally having had enough. Certain people want to treat yuri fans like crap so they can find it on their own this time. It shouldn't be too hard if they'd browse older works instead of looking only at new releases. Or just ask around instead of being meanspirited and entitled. But they have been so I'm not feeling particularly helpful.
For the record, I do actually chafe a little bit at a subset of dedicated yuri fans (aside from myself) who treat every interaction two girls have as indicators they're destined lovers. If just because I don't want a culture where girls and women are afraid to have skinship. Skinship is one of the things I most envy about growing up female and I even kind of wish guys could have something like that growing up. The day a cute girl says "no homo" to another cute girl in a manga is a sad day indeed.
EDIT: And yeah, I absolutely 100% agree not many works handle mental/sexuality changes in a way that's even remotely satisfying. If I was into those I'd be very frustrated myself at this point so I can at least empathize with that much.