But that can cut both ways. If having DRM on a computer at all is offensive to a user, than having a standard DRM method can make it all the harder to avoid.

And I don't think it's a very strong argument that fewer companies rolling their own DRM will be such a great thing, and I'd be surprised if DRM opposers would be relieved that fewer companies are rolling their own DRM if it means its harder to avoid ANYONE putting DRM on their machine. It's like a choice between letting independent, small-time thieves into your home, or having the Mafia allowed to organize, with the blessing or apathy of the general community. The first may be a more dispersed, less coherent adversary, and it might be harder to be confident that their crimes are high quality. The second will act like they already own your house and that they are affording you the privilege of living their under their "protection". But at least with the first, when everyone's not already used to them owning the place and aren't intimidated into accepting them, you can rely on some widespread denunciation of the robbery.

Standardized, widespread DRM is much more like these companies and committees acting like they already own our computers, that how we use them and how we connect them to internet is a privilege we enjoy only at their direction.