Your edit isn't fair. I mean, if you ignore Android (where you hardly get to interact with Linux - even from a copyright perspective, Android Linuxes have rarely been Linux, since too many companies don't release the source of their binary blobs), then Linux on the desktop has always been relatively niche.

I am surprised that you could seriously suggest that the market for Linux on the desktops and laptops was even commercially viable (you say "I feal it's not growing to be a growing market"). When I started using Linux, it was basically people writing stuff for themself and releasing it to everyone. That actually seems like a fundamentally good goal. So what else could you want?