You understand that you're not the one paying for the service, so you don't get a say, right? Even once The Machine has perfect knowledge of you, the ads will not be tailored to your preferences. It will be what an advertiser has paid The Machine to show you.
> what an advertiser has paid The Machine to show you.
As Cory Doctorow has point out so eloquently in his "enshittification" series, the end point isn't even to the benefit of the advertiser. At the end state, The Machine also have perfect knowledge of the advertiser, and the adtech company can turn the full power of the The Machine to the benefit of itself, extracting value from both the audience and the advertisers.