Honestly? I'd rather see more ads that are irrelevant. Ads are already an attempt at manipulation. I would feel better knowing that everyone else is seeing the same shit I'm seeing. That I'm not being pandered to. That there are things that are valuable to others that I have no personal value in.
That's part of living in a diverse world.
I don't know about you, but I don't want a myopic world for myself. The perfect ad targeting system removes my agency; decides what I want and can afford on my behalf; makes my world significantly smaller.