Wow. I guess if we ban it then, we'll be living in a perfect utopia...like we used to have in the past?
Have you ever considered that "Targeted Advertising" could be, for the most part, a way for customers with wants/needs and businesses with products/solutions to efficiently match up? And that the people who have been "duped" by targeted advertising actually just have different wants/desires/needs than you?
I think its more likely that the root cause of all the things you mention, is just normal human nature stuff.
I think you might be using Targeted advertising as a panacea boogieman instead of confronting the uncomfortable real causes for these things (from election results you don't like to family breakups/suicides)?