Aight I just smoked a bowl and daaaaawgs I had some subconscious-brainwashing conspiracy thoughts. I got that Illmatic bumpin right now as well, shout out to deathrow.
Think about straight porn. You're basically watching another guy fuck a woman/women, now if you're a straight dude you're probably not paying attention to the dude's dick, you're still seeing it with your eye even if you're not focused on looking at it.
Now either while you're watching the porn and jackin or thinkin about it later when you're jackin (maybe even during sex if you're havin it with a regular old woman) you're gettin off to that porn. even if you're replacing the dude and imaging that as you in your head, you'll still be thinking about the angle you viewed it from, ie. a guy fucking someone else. now when you're getting off and feeling the ecstacy of it, your brain is releasing endorphins which is why it feels good. this good feeling can please the pleasure center of the brain and have it be seen as a reward for certain behavior.
as you continue to get off through porn in some form or another your brain starts to learn this behavior and see it as something good and normal. because your brain is subconsciously including the 'guy's dick' and 'another guy fucking a woman' as part of the porn, and is then connecting the porn with the pleasure, and then pleasure with a form of reward, you're classically training yourself to enjoy the sight of dicks and of watching other men fuck women. classically training is a psychology term where someone learns to do something as a result of receiving a positive reward, ex. a dog learning a trick from receiving treats, a kid learning to do their homework from receiving ice cream.
So you're essentially telling yourself (SUBCONSCIOUSLY): "Self, it's alright to get off and enjoy this, it's good and I like it."
If you're asking how this teaches men to be cuckolds, replace "woman" with "your wife/girlfriend":
another man fucks
woman your wife/girlfriend.
You start actively enjoying the thought of cuckolding or by actually watching cuckolding, and you soon start replacing the thought of a random woman with your wife/girlfriend. Because there are feelings and emotions involved your senses are heightened, which makes getting off more enjoyable because of a stronger orgasm.
So essentially, straight, man-on-woman porn is subconsciously turning men either:
2. a cuckold
and then the next big questions are "who is doing this?" and "why are they doing this?"
Is it the government? The gay agenda? feminists who want to "weaken" men?
What do ya'll think about my thesis?