So let's say the googlers who are against their labor used in this fashion are just a vocal minority and the rest of the folks are largely ok with it and are simply quiet. What should happen?
I think there is a silent majority of people who are frustrated by the ongoing politicization of the workspace. They are quiet not because they don't care, but feel that it's rude to be so "loud" at work.
There could be a democratic structure in place where employees can elect internal representatives to conduct things and advocate for/against issues on their behalf; alternatively (and more Google's style) there could be a direct democracy vote on particular issues.