There's hardly any marxist element to your critique. And it's a bit delusional too. 4/10
Maybe that's what you find offensive about AI, but that's not what "people" think. Actually, most people don't even think about it; having any sort of principled position either in favor or against AI is deeply terminally online behavior. Irl the only people you'll see having actually formed opinions on AI are people who either lost their job to it or business owners trying to replace or save on labor with it.
As for "stealing", it is only stealing in the same sense that piracy is, or copying is... in other words, it is not stealing. But people have this egomaniacal idea that they're unique special little snowflakes that one day are going to have a brilliant thought and break through in some field and become billionaires (because that's what modern billionaires say they did), so they guard that sense of uniqueness fiercely: if you copy my artstyle, you're stealing my chances of becoming rich, if you make a song similar to mine, if tell the same joke I did to your friends without giving me proper credit... etc. This is totally delusional, and it's not like corporations can't just steal your shit and then crush you with litigation if you try to fight back anyway.
IP laws, for example, do not prevent this, they enable it actually: if ip laws didn't exist then disney wouldn't get much value from stealing some guy's 3D render of a character and sell it as a table lamp in Disney resorts.
They also wouldn't have much incentive in trying to remake their old films or make pointless sequels where they hire idiot writers and retarded directors seeking a cheap profit by feeding an starving audience: if everyone has the right to make their own star wars remake or sequel, they would have to compete with those to turn up a profit, they'd have to make it actually better. But, because there's exclusivity as the copyright owner, they don't have to. They just have to know that someone loves it and someone wants more, so anything that comes out is all there is to consume.
And that is of course not even mentioning the basic marxist concept of stolen labor, which of course all companies do: the people having actual billion dollars ideas are under contractual obligation to give up authorship to their employer, and this employer can dispose of the worker whenever it wants.
So yeah, the only reason AI benefits companies so much is not because of any particular characteristics of the technology itself, but because we live in a world controlled by these corporations who will benefit either way. But most people don't want to "fix" the world, they don't want to live in a better place, they just want to be part of the elite.
Meanwhile, AI on it's going can be used just as much by individuals to empower people, for example: the Nexus STC is a decentralized project meant to replace scihub whose main implementation ran for 3 years: and uses bots, web crawlers and, significantly, deep learning algorithms, to scrape all sorts of literature from numerous libraries, private servers, p2p networks, and so on. Sure the pages and bots have been shut down recently, but the source code is still available. And much of the stuff it collected was saved by other projects like Anna's Archive.
And yes, STC is a warhammer reference.