We're talking about NTR though. The point is, there are people that do cuckolding IRL, but associating them with the fictional stories is the same as saying lolicons are automatically paedophiles. It might not be wrong is all cases, but these are pretty risky assumptions to made. You just need to take out one thing, like for example the reader not self-inserting themselves into the story, and you get a completely different picture. Plus cuckolding isn't even a very good parallel, because it's consensual. You can't really recreate an NTR plot in reality without being genuinely betrayed and humiliated and that's not something you can just stage by yourself. It'd be cool to see a study on how many people that enjoy NTR would like to essentially roleplay it through cuckolding, but I'd be shocked if the overlap was actually that big.