Microsoft are actually making games MORE accessible - xcloud putting xbox games on your phone, your PC, anything with a web browser... For £70/yr or whatever. Oh, and sure your Xbox if you like but don't feel like you have to?
Not to mention their first party stuff is directly ported to pc and can even be bought through Steam!
Sure, it's all for Microsoft's evil corporate purposes and they'll fuck it up at some point, but right now it's great for gamers.
However Sony buying Bungie in particular just comes across as a giant "fuck you!" tantrum.