twin incest

ok so i really hate incest, they are disgusting af, and i just saw manga incest and it's fucking BL , i read the comments, everyone loves it, i just don't understand, why if it's gay , you guys always said it's okay, it's only fiction but if it's straight, you don't like it, you guys are so unfair and disgusting, well i hate both gay/straight incest anyway, then when i search some BL manga, i accidently saw another BL incest and they're FUCKING TWINS, oh my god i really hate incest, and now they add twins in it, i disgusted, why twins why, and there are a lot of incest bl, disgusting, I don't understand why people made this manga