That's an excellent point about being able to switch off the fetish. It may be that the draw of these games is that you may be put into a position where you can't turn it off, and you're just left in this hypersexualized fantasy. In such cases, an unprepared mind could indeed have their worldview skewed unless they do appropriate self after-care to pull back to reality.I think cuckold humiliation is fun if it's a game you play and not a permanent lifestyle where you lose control. Like you said KingB captured the cuckold mindset better than MANY other authors could. I would argue only the guy behind "Watching my Wife" also knows what's up. Sometimes people want what they can't have and artificially introducing scarcity or this concept of a better man fucking her better than you can gives you an addictive dopamine rush that makes you aroused when you would otherwise be finished sexually. It needs to be balanced, rules need to be followed.
If it spirals out of control to the point where you can no longer "switch off" and have a normal relationship then you have major problem. If you internalize the humiliation as a part of your identity, it's a serious problem. But if you think of it like a little vacation into sub-space where you aren't in control and you don't have any status or standard to uphold, then it's not much different from the guy who pays an occasional visit to a dominatrix before resuming his normal life.
At the end of the day the game lets you pick the dynamic. If you want to be more submissive, Ethan picks submissive choices and she will deny him a little more. If you want it more balanced, hold her hand while she's getting fucked and protect her from more aggressive guys like Vance. If you want to be hurt really badly, you can be a reluctant cuck or just straight up cruise through the NTR route and kick her out of your house and go fuck Riyah.
Also: wanted to add really quickly:
10 years ago Web 2.0 was in its infancy.
The reason you're seeing more QoS/BoW fetish sites and why Tiktok/Social media influence these numbers is because you are interested in it and the algorithms behind now mature Web 2.0 technology are designed to capture data metrics about your interests and feed you more of what you like. If you don't think critically about what is "pushed" on you via your various feeds you can easily be locked into a self reinforcing loop that can affect your judgement about the world once you log off.
We now live in an internet that knows you better than you know yourself and will keep feeding you what you want until you establish new interests outside of what is recommended or shown to you... My tiktok will look vastly different than your Tiktok and that confirmation bias means anyone dependent on passive internet notifications for their information will live in a parallel universe from another person whos reality will look vastly different.
To be honest, I'm not personally on social media like TikTok, it's just been linked to on many porn fetish sites as being "evidence" of the way the world is going. Like the BBC stereotype in itself, it's largely BS but with a small grain of truth in it. The interest in this fetish is self-fulfilling due to its nature. The girl I mentioned I met on another adult gaming site called loverslab, based around mods for games, and she had a... different upbringing than you might expect. Suffice it to say, both of us don't fit into the mold of people who would fall for algorithmic brain-washing and confirmation bias.