Well, the only true master race is the PC Gaming Master Race!
No, honestly, this whole debate wether it is Mobile market, Consoles or PC that is the suprerior gaming market, is redundant.
And really, Multi-platform games isnt a solution to the problem.
Since that then will begin restricting the PC.
Imagine a developer who then deletes/lets out features because it isnt fit for the Mobile market.
Imagine a battlefield or CoD having to do that.
It's already now partially a problem that developers, because of consoles have to limit the game.
So No, multi-platform development is something that will work for some games, but not for all.
And in general it still is a problem, as said, that Consoles are limiting the PC in many ways.
So to round this whole story up: PC is the best, yes, and since it would be Limiting, Multi-Platform development isnt an option.
But to calm all the console and mobile market fans down, yes they have some advantages, such as consoles are designed for the living room and for family gaming.
And Mobile is designed to be played on-the-go, but honestly, that are all things PC can do too, not in the same way, but still, it can.