I think we may agree that a lot of the ecosystem is dependent on Red Hat, if they close stuff even more stuff tomorrow someone else will need to step up and put in an awful lot of hours quickly. Suse are stepping up with a 10 million dollar claim in response to the current situation and Rocky and Oracle are exploring the legalities of the GPL which is entertaining.

Forking the kernel is non-trivial, a far bigger undertaking than a casual 10 million dollars from Suse. It's well over 30 million lines of code over decades with billions invested in it.

Again from Ted: * IBM hosted that meeting, but ultimately, never did contribute any developers to the btrfs effort. That’s because IBM had a fairly cold, hard examination of what their enterprise customers really wanted, and would be willing to pay $$$, and the decision was made at a corporate level (higher up than the Linux Technology Center, although I participated in the company-wide investigation) that none of OS’s that IBM supported (AIX, zOS, Linux, etc.) needed ZFS-like features,because IBM’s customers didn’t need them.*

I'm not a position to outcode IBM but I am very grateful there are distros out there that do ensure things largely work without them.