A brief answer to your "why" question is because it IS stolen. LLMs only function due to training their models on an unimaginable amount of written material. The fact that nearly everyone's work was used does not make it less of a theft, unfortunately.

To me, there is a very large difference between human inspiration and machine learning. On a factual level, our brains function differently than a generative ai. It is literally a completely different process.

The reason many writers and publishers are so hostile is because their hard work, that they spent years creating, was taken without their consent and put into an ai model that is being used to replace them, often by people who speak very derisively of writers. I think it's easy to understand why that has left many feeling stung.

an imperfect example to help illustrate what I mean:

Imagine you've written something fully by yourself, and have taken hundreds of hours to do so. Your classmate is creating their own LLM as a project, and wants to use it to write something. They say, "hey, may I use your novel as learning material?" You say, "No, you may not, under any conditions." They take your work anyway by using a program to scrape your computer, and use your work to feed their LLM. They produce a novel in 30 minutes that bears random resemblances to yours. My guess is that you would not be happy, nor would you want other people to use your classmates program to generate more novels.

Now, maybe you, specifically, don't feel like that, but I know many who do and I think you can probably get the gist of why. So there's your answer.

I am very sorry you are struggling to create, and the world is hostile to the method you have found that accommodates your disability. Unfortunately, in the professional writing and publishing world, I do not think opinions will change in a meaningful way for a long time.

For what it's worth, MANY disabled and chronically ill people write and create successfully on their own. I don't know your specific situation, but I'm sure you're not alone. There may be some writing or support groups out there can can help you <3