I've played My Dorm, and many of the things you've said here are untrue. Erika is literally the second most popular girl in the game, just behind Norah and just ahead of Martha - Norah 67, Erika 65, Martha 64, Daphne 59, and all other girls 52 or lower (screenshot from Tropecita's Discord server just now):
(Note that the "ErikaDevil" emote at the end with 6 votes is a joke, just like the second "Meemaw" entry next to her with 5 votes.)
Edited to add: What it comes down to is that you can have your tastes and things you find distasteful. No one is saying you can't. But as soon as you try to claim that your preference is the majority preference, you need something to back that up, and you just don't have that.