This is a bit misleading. All of genkernel/, gentoo-kernel/, gentoo-kernel-bin/, gentoo-sources/, git-sources/, vanilla-kernel/ and vanilla-sources/ are all different packages for the same Linux Kernel. There are multiple slots per package for the various supported LTS versions of said kernel but they will all get +/- the same set of patches for these issues. There is some support for other kernels like Darwin, BSD and HURD but your millage will vary.
It has been like this forever and periodically someone complains, but then they just go out and buy another mac and keep producing software for macOS. If you want this to change, stop providing financial support.
My local family owned tacoria now sells a $14 burrito in LA. The rest of the prices outlined in this article are also on par with LA pricing. It's hard to find a more expensive place to live the California.
[1] https://en.wikipedia.org/wiki/Xinerama [2] https://xorg.freedesktop.org/archive/X11R7.5/doc/man/man1/xr...