You said it all: people ASK for NTR content in the game, but this don't make them trolls. People who don't like NTR can ask it to be removed, it don't make them trolls.
What is pathetic is the fetish police, trying to put themselves into a higher pedestal just cause they hate NTR and other people like it.
For example, the game called Rising Bliss: The game had a BIT of NTR, people made life threats because of it (REAL life threats) dev just rushed into a mindless ending and quit, no game or world from him since.
You can ask to remove or do add ANYTHING, not only NTR, this is not being a troll. But the way the NTR haters behave, like they're being 'cheated' on real life, willingly try ridiculize other people fetish and make REAL life threats is pathetic. All of this over pixels.
You clearly don't enjoy NTR. 99% of the NTR/netorase/sharing games are HORRIBLY writen and with poor rendered scenes.
Just because there's a lot of one product in the market, don't mean it's good. It's natural for people to see a very well writen game like WAB, Being a Dick, etc and ask for this fetish on it, they want to enjoy what they like with quality, not with poorly developed games.
That said, who are you, me, or anyone else to determine if there's ENOUGH games with Fetish x, y or z? People like, people want it with quality, so they'll ask, simple as that. Let people ask to add or remove anything, just stop with the brainless hate towards specific fetishes.