The same argument (who is it hurting if its notreal and viewed by a singular person?) is commonly used by organizations who would like to see the age of consent lowered / widespread legalization of child pornography.

I don't want to discuss it too much because there's enough nuance here for people to hang you with no matter what you say, but, a brief parable: I spent exactly 1 sentence pointing out to someone you could make porn with Stable Diffusion and they started hosting a SD instance for deep fakes in our non-technologist community with girls in it, and also started what I still think of as a "porn dungeon" chat room.

It was immensely frustrating trying to verbalize why this was antisocial and why there was a set of people who were legitimately upset by it. They never really understood fully.

But I'm sure they had moment with the Taylor Swift deepfake stuff from last week.

There's isn't really a 100% logical Spock reason why it's bad, other than other humans find it deeply distasteful.