So, why use Linux and support Steam, or use Linux and use Steam?
Because Steam offers a good service. Almost as good as “hackers”.
The other problem is game developers that want DRM and blablabla.
Anyway honestly you sound a little bit way too pathethic. Maybe one day Steam just get’s out of Linux enviroment and goes with the “Steam OS” and you will lose every game you purchesed, but i doubt it because is a gaming platform, as many platforms as possible as much money comes in.