Aight I hope i'm not starting any wars with this topic, but i'm just curious. For me, I don't really like kawaii or cute music (especially kawaii future bass) because I just don't really like that aesthetic all that much, not to discourage anyone though.
I'm a huge fan of not just EDM, but also Metal. I love all kinds of Metal. Heavy Metal, Death Metal, Nu Metal, Groove Metal, Metalcore, Deathcore, but if there's one subgenre of Metal I couldn't really get into, it might be Norwegian Black Metal.
Bands like Mayhem and Burzum. Like, I'm not trashing on people that like it, but it's just not for me.
Norwegian Black Metal is known for its music and its imagery. It's full of edgy Satanic lyrics and imagery, almost every band nowadays needs a pentagram or an inverted cross. Which I'm not against Satanic imagery, a bunch of bands I listen to that AREN'T NBM use that type of imagery, probably like the tiny pentagram every now and then, but NBM takes it up to 10. I'm talking about on the front of a CD, inverted cross, back of the CD, pentagram. The lyrics? Love letters to Satan. And the instrumentals themselves are repetitive. Like, they all use trem picking on the guitars and blast beats on the drums, and if you're bass, don't even try. Most Norwegian Black Metal sounds like it was recorded on a Nokia phone from the 90's that was placed on an ice cooler down the road. I just don't like it a lot. The edgy "ooh Satan good, Jesus bad" lyrics in every song, the bad music quality, the community is full of edgy kids, and don't get me started on the man Varg Vikernes. I leave that Google search to yourself.
Now don't get me wrong, there are a few good NBM bands out there, and even some with good sound quality like Behemoth, but the majority of it is the same edgy, repetitive nonsense.
Most radio pop music. You know the type, the stuff you can tell is literally just made to appeal to the masses. Not all of it, though.
And I'm not talking pop as a whole. Plenty of music influenced by pop has caught my ears in the past (mainly Monstercat Instinct), and even when it has some of those elements that radio pop is infamous for, I still wind up enjoying it.
As for why... I can't give you a concrete answer. It's not because I hear it all the time, because, well... I stopped listening to the radio, and streaming platforms don't tend to promote it to me out of the blue. It's also not the basic structures, or the progressions, or anything involving songwriting, because that's all on whether the creator feels it's right to do so. Thinking about it now, I don't honestly have a definitive reason for disliking it, but I do anyways.
I never developed a taste for nightcore either. Vaporwave, from what I've heard at least kinda has some more going on sometimes, but the arguments can be made for either generally, especially if you're unfamiliar like I am. I am a little biased though, since I've listened to vaporwave way more than nightcore, and even then, that isn't a lot.
ironically, i have a pretty big distaste for edm on the more generic side.