Killing ZFS on Linux would basically make Linux unsuitable for lots of usecases. What would you use instead? Btrfs, which keeps having stupid data corruption issues? Bcachefs, which is not yet stable and now it's being struck out of the kernel? LVM2+thin provisioning, which will happily eat your data if your data overlap? I hope some industrial players will force the kernel to drop this nonsense.

Heck no native filesystem besides btrfs has compression, I'm saving HUNDREDS of GB with zstd compression on my machines with basically zero overhead