> there is nothing to match a fingerprint to, so fingerprinting is useless
Huh? A fingerprint doesn't need to match _to_ anything. It just needs to be consistent across browsing sessions for a profile of visited sites and interests to be built.
> Additionally fingerprinting is not a tactic that advertisers want to use
Really? Citation needed. All advertisers want their ads to be highly targeted to a consumer who is most likely to make a purchase. The reason web advertising is much more appealing than advertising in traditional media is precisely because it allows microtargetting on a level not possible via traditional means. Advertisers are always chasing a higher conversion rate, and microtargetting is proven to yield better results than showing ads to a large and generic cohort of consumers. Advertisers aren't happy about the Topics API, and many will choose the technology that allows them to continue to target ads more accurately. Fingerprinting is so far the most foolproof method of doing this, since it avoids pesky cookie blockers, and is difficult to detect.
> We all want a technology that is truly privacy focused for users, but still enables functionality that is critical to advertising like brand safety, frequency caps, and some semblance of targeting
I call BS on the first part. Ad targetting goes directly against user privacy. There's no reconciliation of the two. Advertisers can go back to buying ad space in context-relevant places (e.g. show fishing ads on fishing-related sites), but none of them want to lose a _substantial_ part of their revenue by not taking advantage of user tracking.
How you can be so defensive about this is beyond me, and leads me to believe you work in the ad industry.