Excellent point. I completely agree and should have perhaps put more emphasis on the fact that these practices are of course egregious and the onus should not just be on the user. There should be more public awareness of these privacy nightmares, however. Somehow people need to learn to start caring about this stuff, because if nobody uses Facebook, Facebook doesn’t have the power to act the way it does.
Are you on Firefox? I use an extension called PagezoomWE or something like that. It remembers the zoom level for you.