Something about this feels off to me. One of the salient possibilities in terms of technology affecting romantic relationships, I think, is hyperspecificity in preferences, which seems like it has a substantial social component to how it evolves. In the case of porn, with (broadly) human artists, the r34 space still takes a substantial delay and cost to translate a hyperspecific impulse into hyperspecific porn, including the cost of either having the skills and taking on the workload mentally (if the impulse-haver is also the artist) or exposing something unusual plus mundane coordination costs plus often commission costs or something (if the impulse-haver is asking a different artist).
It’s even worse than this. Even if you restrict to super-mainstream porn, you can of course find a deluge of naked people doing naughty things, but it’s very rare for these people to be the epitome of beauty. The intersection between “super duper hot” and “willing to appear in porn videos” is small, and nobody expects random camgirls to look like Jessica Rabbit (presumably because actual ultra-hot people have no difficulty finding any other job). Add just a simple preference for a specific ethnicity or the like, and Stable Diffusion rapidly becomes the only way to find photorealistic images.
It’s even worse than this. Even if you restrict to super-mainstream porn, you can of course find a deluge of naked people doing naughty things, but it’s very rare for these people to be the epitome of beauty. The intersection between “super duper hot” and “willing to appear in porn videos” is small, and nobody expects random camgirls to look like Jessica Rabbit (presumably because actual ultra-hot people have no difficulty finding any other job). Add just a simple preference for a specific ethnicity or the like, and Stable Diffusion rapidly becomes the only way to find photorealistic images.