Which organizations are willing to take on that burden (time, expenses, stress, etc.) for free, with no guarantee that they will win?

There is not really any incentive or reward for 3rd-party organizations to step in and do this.

That's what GNU was originally for, and why they requested copyright assignment from contributors to their projects.

I guess my post was downvoted by AI bots?! :D

Because reckless and greedy AI operators not only endanger FOSS projects, they threaten to collapse the free accessible internet as a whole as well. Sooner or later, we will need to fight for our freedom, our rights as individual human against rogue AI and the übermacht of the mega-corporations, just as we need to fight against the concentration of contents behind corporate gates today.

And I don’t any other way than going juridical against these operators. They give a sh*t about the little humans, not even copyrights and other legal regulations.