> most Linux distributions are just cosmetic variations of the largest upstream distros.

Plenty are not. I am impressed by how usable community-based (non-corporate) distros are (e.g. Gentoo, Arch). This is truly indigenous technology.

> they all rely on Torvalds and everyone else for the kernel (heavily funded by donations, companies, etc)

This is an interesting thought. I believe the Linux kernel would continue to be viable on a purely volunteer basis, without corporate subsidies; I can't prove it though.