I'd be interested in seeing personalized ads but there is no such thing. I recently had a look at what ad categories Google applies to me and honestly.. it is so wide that it is does not feel personal in the slightest, and indeed it's wide & vague and nonspecific enough that "employed male, about 30, western" would be a sufficient description. Indeed, I feel like that just filters for the ads they'd blast on broadcast media all day long anyway.
Advertisers don't really understand who I am or what I want, and Youtube history isn't a good substitute. If anything it's circular, because Youtube also keeps recommending the same shit based on viewing history..