"Write a better story then..." is the best answer to that sentiment...
Wrong. Unless you mean writing one and making it into a game yourself, then more power to you.
Optional NTR adds nothing to a story... otherwise it wouldn't be optional.
It's just there because the dev is a cuck.
If it's not optional then it's a full blown NTR game to begin with.
Again, wrong. Maybe in some cases, but in most cases its an option because people seem to get absolutely bent about it.
To answer your other question. Reading a book, or watching a movie is not the same as playing an AVN.
In most AVNs you have direct influence over the MC, you can name him. He becomes your avatar. If you want to go even deeper you can self insert, at least to a degree. You experience the world around him through his eyes. You have choices to make, which influence the story.
In a book or movie I'm a passive bystander. I can experience the story but I don't influence it or take part in it.
Not everyone plays the way you do
. Some of use, like myself and a few others actually
DON'T insert ourselves into the story. When I play these games, I play them like I'm reading a book, which is why the comparison. I assumed, as most of these Anti-NTR people seem to be, that you are a self inserter and that comment was meant to get people who insert themselves to see it from a different perspective. When I play these games, I play them like I'm reading a novel I'd read from a library if it had a few choices like a choose your own adventure. I follow the main characters life watching as a third party, see through the their eyes and experience the world around them through their eyes and I make choices to lead me through the story. So once again, wrong. It is in fact, to me and those who play the same way I do,
EXACTLY like reading a book or watching a movie, only we have a little control over the story outcome.
I also don't think that many people actually hate NTR games, they hate it when it's suddenly added later in the game without warning. Or when devs try to cater to both the harem and the NTR group.
If a games were being tagged correctly, something both LC and Cuck95 struggle with, Cuck95 often on purpose, then most of those problems wouldn't exist.
There are also many devs purposely trying to hide the fact they want to make a NTR game by trying to farm subs in other more successful genres, just to introduce NTR later.
I dont disagree here that there are some devs who do this, but not all. It'd be a fallacy to conclude all devs who utulize NTR do this.
In the end though, as I said before. People need to get off their high horses and stop being so entitled. These games are a form of art, and the devs the artists. They don't owe any of us anything, and those who hate NTR should count themselves lucky so many devs have taken to adding optional NTR routes into their stories to accomodate you. Maybe thats a bit of a hot take though.