And we're back to what I said: What is your point with comparing a "console" userbase made with mixing platform holders ?
We're not asking Nintendo or Sony. Because none of them is pretending to care about PC. Windows is a microsoft product, the Operating System most gaming PC use.
They don't ask to give less money to MS in fact. They ask them to accept that they screwed up and that they shouldn't be allowed to break what is working right now.
If MS wants to support PC, they do it by making Windows a great OS (which it is), making DX a great API and releasing whatever titles they wish on Steam or existing platforms. Not theirs. Not after the GFWL fiasco.
Also, about your condition about first party offering selling at least 10% of the console sale... it's hard to tell for a reason: The only likely to do it is Microsoft. And they've not been supportive of the platform. But if you wish to know, a lot of AAA games did reached your 10% number. Heck, lastly, Ori and the Blind Forest, a Microsoft published title, reached more than 300k units sold on Steam.
Maybe not first party, but published by Microsoft on Xbox One. Dead Rising 3 sold 278k on Steam and Ryse sold 238k. That's more than 10% of what they sold on Xbox One.