Good!
Individually-targeted advertisements are insidious and need to be banned.
Everyone who sees a traditional advertisement on TV, a billboard or in a newspaper sees the same advertisement. And this is important; because if the advertisement crosses any lines -- if it is racist, sexist, homophobic, ableist, transphobic, relies on other offensive stereotypes or is just straight-up factually incorrect -- somebody who cares about such things will be certain to see it, and complain about it. Maybe some people are just over-sensitive, sometimes there is genuine offence; but there is always an inescapable background of responses to any traditional advertisement, giving some rough indication of its level of social acceptability.
Individually-targeted advertising totally subverts this social filtering mechanism. When an overtly racist advertisement is shown only to a carefully-selected audience who already harbour some level of racist sentiment and nobody complains about it because it was carefully hidden from anybody who might object, those racists are going to form the mistaken impression that the lack of complaints means the advertisement passed social filtering. Those pesky SJWs are using Facebook too; but they have not said a word about a video clip advertisement in which someone actually said the P-word out loud. Case closed, the P-word is now officially socially acceptable. If you snowflakes didn't complain about an actor using it in an advert that was all over the Internet, then you've no business complaining when someone says it in real life.
(It need not be racism, of course. It could just as easily be a straightforward falsehood; such as the absurd concept of a members-only institution offering a departing member better terms as a guest than they enjoyed during their membership.)
And so, unconscionable ideas get lent a veneer of bogus legitimacy. Because when you show somebody a targeted advertisement, you aren't just showing them an advertisement: you are also showing them a (false) background of (manufactured) acceptance, artificially created by violating the presumption of universality of experience.
Individual targeting of advertisements should be referred to as what it is: Psychological warfare.