Android is an operating system built on top of the Linux kernel project. "Android is not Linux but ${DISTRIBUTION} is" is just stupid, operating systems simply cannot be compared to a kernel.

Not quite right, NDK applications are constrained in what they can touch and many syscalls have been removed.

What does Linus have to do with it?

just to mention what I am saying is not just my opinion.

That's not how it works though.

Linux is a kernel, and Linus has all the right in the world to make that claim. It doesn't in any way strengthen your argument though because of the different userland. You are comparing apples (operating systems) with oranges (kernels).

sorry that I created confusion.

I tried to tell that his "real-Linux" (kernel) already exists (I don't​ know if he meant (in another comment, he said that he meant userland) userland e.g gnu, freedesktop.org etc by "real-Linux")