The difference is Linux has its act together. Android doesn't.

Right now I can SSH into a vastly different array of hardware and update a roughly equivalent set of packages to get for example the latest rendering engine or security fixes. This is not possible at all on Android which is a joke. And I will never understand how people such as yourself can defend it.

Fragmentation is a huge issue for Android and it is only going to get worse unless Google does something about it.