buy Photoshop for $ 30.- / month (sure) or search for a pirated version, dowload a crack, install it and pray that it works

I literally gave you a tutorial to a free web app and you come here with a massive bad faith text wall that starts with "you must buy / pirate literal photoshop to do image editing". Sorry but the difficulty that you are seeing here is not the method but the thing in front of your monitor.

find a picture that fits with the person you've photographed read a guide online try to do it you have (maybe) a bad fake nude

Speaking of lying to oneself... Where's your several attempt of nudifying just to figure out that you actually need a good photo too, with good lighting, clothes having a good contrast with the background, a pose that is probably frontal and without arms obstructing, and then pray the model can manage to draw a half decently realistic looking body over it without any artifacts or mutations. Generative models like these aren't magic and have many faults and you clearly show that you have absolutely no clue about that topic if you think you can just snap a picture and press a button.

Tell it to the girl who killed herself because everyone thought that her leaked "nudes" were actual nudes. People do not work how you think they do.

As tragic as that is, a photoshopped picture would've resulted in the same outcome and you can probably even find such cases if you dig through old news articles too.

But the emergence of generative AI warrants a public discussion about its consequences.

No, it only shows that we've slept on law enforcement related to digital topics for decades, thanks to all the boomers in politics who have even less of a clue about that topic than people like you, and all those who ridiculed everyone using computers before they eventually reached mainstream audiences. The problem here is also that fear mongering and dishonest "discussions" like this only lead to draconian overbearing laws that will end up really hurting the wrong end of it, while not doing much if anything for the actual issue behind it, which isn't generative "AI" or manual photo editing. It's akin to using the topics of terrorism or child pornography to ban things like encryption or implement web filters, or other highly invasive mass surveillance methods such as data logging or things like facial recognition.

Are we ready to let that happen?

I mean, I'm not, as I wasn't even before harassment of this type was a thing just without the "AI" aspects of it. But you all were ready to let it happen, again, until the "AI" aspects of it started to cause the media hysteria. If you dig through articles of cases like this or of similar nature, like cyber-bullying was a popular umbrella term before, then you find that people simply did not take this kinda stuff seriously, causing those acts to go by unpunished. And that was, and still is, the main issue of it. Many, if not most countries don't even give you as a person the rights to an image of yourself. How can you then expect that someone editing photos of someone and publishing that without the photographed person's consent being legally liable? After all, what crime would they have committed if the exposed person on the picture isn't even real except for maybe the head, which was publicly visible at the time of the photo too?

Also we're talking only about fake nudes, but if you think about the fact that GenAI is going to spread throughout every aspect of our world, your point becomes even more absurd

Here's the thing: This is going to happen either way. That's why we need to understand that we rather have to find ways to live with it. You could ban generative models, but that would mostly just stop the legal usage, while others would just continue to use it illegally. Maybe your average inept zoomer kid would have trouble finding an app for his smartphone to do it, but it would still happen.