One thing doesn't imply the other. Whether or not EA and Ubisoft supported the DRM measures by Microsoft doesn't directly mean that their games are all going to be locked from second hand purchase and renting. If they do follow that path then people can decide to not buy their games and buy the games of their competitors on the system. There's already a backlash against Microsoft for their console choices, if EA and Ubisoft are the only companies blocking used games and rentals on the PS4, I'm sure that will result in a backlash of its own.
Maybe, but we are underestimating the power of a brand. Imagine EA goes full on with DRM on all consoles, no used games at all. When Mass Effect 4 comes out, people are going to buy it, simple as that.
It's the same as DLC and online passes, people bitch about it all the time, but they are still getting it. That isn't stopping them from buying the game.
If publishers come out with offline DRM you will hear gamers complaining about it to no end, but they will get the game anyway. Publishers know this and they will take advantage of it.
Nintendo and PC gamer