[imtringued]

That's just the licensing part. The license says something, but a license doesn't turn people into slaves. The desire or decision to produce software has to come first and only then does code with a license exist.

Before AI and in the early days of FOSS, people assumed that the primary recipient of code sharing were other FOSS enthusiasts, in the form of developers and users.

Then there was a wave of permissive licensing, which obviously brought with it corporate interests, however, this was easily foreseeable and many people who favored permissive licensing intentionally did so to appeal to corporate users, so the risk of them quitting due to perceived abuse was slim.

Now that LLMs are a thing, the primary recipient of a lone developer working on his project isn't really another human being. This human connection is now lost. Instead, your project is now laundered through the model and the model vendor can get away with ignoring your terms and conditions and let others write proprietary software.

In this transition period there were developers who thought that there was always going to be a human connection (even if part of a corporation), but then things changed and they realized their world view was wrong. Given the arrival of this new information, they obviously change their behavior in accordance to how the world actually is.