There is absolutely no NEED for it. The advertisement industry will tell you that you want to be targeted so that you get the products you need/want. It's a twisted argument. I rarely/never got targeted with something useful. If consumers could freely choose, they always want ad-free stuff.
Massive societal costs come with targeted advertising. Especially psychological, political and social costs. I see no reason why we should take these risks collectively for the profit of few.
If "they" want it, they should show the evidence that it has no harmful effects. The burden of evidence should be on them.