* Ads are everywhere, not just online; physical ads are harder to filter off.
* Ads work (mostly) on unconscious level.
* Conscious resistance takes effort, and has a limited effect.
> advertising should be considered a public issue as it constrains our ability to solve social and environmental problems.
BTW I can't help but compare this to the recent outrage about social networks and games engineered to produce unconscious impulses to want more, and suggestions to regulate them, the way gambling and liquor are regulated.
I wonder how much of the unconscious-affecting stuff may get regulated. Perfumes affect the sense of scent which is ancient and bypasses consciousness well. Spices, salt, sugar — they all affect the unconscious sense of taste. Certain kinds of attire produce unconsciously recognized images of strength, authority, sexuality, etc. To say nothing of facial expressions. If followed down properly, this rabbit hole of a logic leads pretty deep.