For example, I know artists who are vehemently against DALL-E, Stable Diffusion, etc. and regard it as stealing, but they view Copilot and GPT-3 as merely useful tools. I also know software devs who are extremely excited about AI art and GPT-3 but are outraged by Copilot.
For myself, I am skeptical of intellectual property in the first place. I say go for it.
Let me be perfectly clear. I'm all for the tech. The capabilities are nice. The thing I'm strongly against is training these models on any data without any consent.
GPT-3 is OK, training it with public stuff regardless of its license is not.
Copilot is OK, training on with GPL/LGPL licensed code without consent is not.
DALL-E/MidJourney/Stable Diffusion is OK. Training it with non public domain or CC0 images is not.
"We're doing something amazing, hence we need no permission" is ugly to put it very lightly.
I've left GitHub because of CoPilot. Will leave any photo hosting platform if they hint any similar thing with my photography, period.
Those are effectively cases of cryptomnesia[0]. Part and parcel of learning.
If you don't want broad access your work, don't upload it to a public repository. It's very simple. Good on you for recognising that you don't agree with what GitHub looks at data in public repos, but it's not their problem.