To return to your questions, OP, no, I don’t think we can stop men (or women) from having fetishes. This is from my own personal experience, which I will share, in the hope that it will help others understand.
I have a very odd sexuality. It’s not technically a fetish as a fetish requires an object, and my kink is for a bodily function that has nothing to do with sex and isn’t even remotely considered in most people’s ideas about sex. It’s not about urinating or defaecating or anything commonly considered kinky. It isn’t hiccups but think along those lines. From now on in this post, I will use hiccups to represent my experience.
I can remember as a young child, gaining an odd kind of enjoyment when a friend had hiccups. I didn’t recognize it as sexual at that point, but the experience of liking it for no reason was definitely there from very early on. I know this as I had a friend who hiccuped often, but that friend was only there before I reached puberty. I would also instigate hiccup games when very young as I had no concept that it was odd.
When I reached puberty, I started to fancy boys, but really only became sexually aroused when thinking about hiccups. I would imagine the people I fancied, having hiccups because that was what turned me on. In addition, if a girl had hiccups, I would also become sexually aroused, not because I wanted to have sex with her, but because the arousal was completely beyond my control. I had no desire to interact sexually with the person though.
Because it was so fundamental and because I grew up with it, I assumed for quite a while that it was normal and that others felt the same, and it only gradually dawned on me that it wasn’t.
As an adult, in sexual encounters, I could occasionally reach orgasm without thinking about hiccups, but mostly, I had to resort to imagine hiccup scenarios in order to get there. If I was masturbating, that was what all the scenarios in my head were about.
Even now, though I’m not sexually aroused often following menopause, if I do masturbate or if I am turned on, it will inevitably be related to hiccups and not another person or body part.
So, in short, it’s been a fundamental part of who I am, from the earliest times I can remember.
Frankly, it’s highly inconvenient. I’d much rather be turned on by something more normal, but it’s also not something I think I can change. I have no control over my arousal, only over my reactions to it.
Having it available on the internet did drive its importance in my life. For a while I interacted with others who had the same kink and it did mean I focused more on it, but not interacting doesn’t make it go away.
So I can believe that AGP could be formed very early and feel very fundamental. I think that men who engage with others with the same feelings on the internet are more likely to exacerbate their feelings and are more likely to act on them in public. I think acting on your kink and being encouraged can drive you towards a more addictive behaviour pattern and make you more likely to act inappropriately.
I don’t think you could entirely get rid of the base feelings if they are as pervasive as mine were and are. What you can do, is make it clear that acting on those sexual feelings in public, or worse, with a person who can’t consent, is entirely inappropriate and that there is no excuse.
However hard you feel it is to hold that beach ball down, holding it down is exactly what you should be doing if it is driving you towards inappropriate activity that has an impact on others.