Does it really? I don’t find it to be a challenging distinction at all

private property, distinct from personal property.

The exploitation of private property is derived from the exclusion of labor from its product - maybe you have a different understanding of what ‘theft’ means, but it’s the principled exclusion of what labor produces from the labor producing it that is the basis of marx’s claim of ‘exploitation’

AI is theft in the same way that all private property theft. It isnt the piracy of media, it’s the alienation of labor from its product, and withholding it for profit.