When you say "GitHub's AI", you have to be absolutely crystal clear whether you mean an automated process or an AI-powered system that has gone rogue. The difference in implications is significant and conflating the two isn't likely to help your case.
> We really need federated Git hosting to become popular at this point.
> especially when it has a monopoly in the market and is basically required in the current job market
There are more GitHub alternatives than you can shake a stick at. There are managed Git solutions, self-hosted Git solutions, manually-managed NAS repos, Git/GitHub alternatives and hundreds of methods of file versioning.
I really don't think you can call GitHub a monopoly with a straight face. Maybe you could argue they're an unnecessarily critical part of online infrastructure, but anything hosted on GitHub can be migrated elsewhere with little effort.