Why is NTR slowly creeping in into more non-hentai anime/manga?

>Karami Zakari
>Sasha
>Medusa-chan
>Super Ball Girls
>Soredemo Ashita mo Kareshi ga Ii
>Dare Demo
>Wolf Girl
>Canon NTR doujins post romcom manga

Not even romcom and isekai is safe anymore. I feel like it will gain more fans among westerns in the future.
Is the future of anime cuckoldry and ultra-whore heroines?