I just noticed that what someone said. Ai can't make foreskins.

It can, actually. Long-running AI ‘debate’ there—true most tensor models were originally, say, US-based and tended – still tend – to favour cut ones but you can solve the ‘problem’ in lots of ways, incl. more recent tensors, specific LORAs, correctives, etc. Also depends on your prompts and logical order of your prompts. Lots on this in another thread:
Photos & Videos - AI Tools: How to and Technical Discussion on Creating NSFW Gay Sex Stuff with Stable Diffusion (and others)