I would really like to see these die. Regulators should just work with browser vendors to make an API that I can set at the browser level, and websites just read that to know my preferences and leave me alone.
Let me explain why with an example: say you're the type of people who doesn't care about "privacy" online ("I've got nothing to hide"), or you do; and you want to "support " certain ad-supported websites you're a fan of; but not that new clickbait toilet paper your aunt sends you.
I can't think of any way to have a good UX to opt in or out of "tracking" cookies which people would actually use (few will bother changing the defaults, and most mindlessly click ok).
Preferences should be expressible in any form a user seems fitting their needs. If they want to block-all,enable-per-site or enable-all,block-per-site, or block-mask, or enable-mask, or top-down rule priority list — they should be able to. Designing preferences in any other way is a dark pattern not worth considering as a fully user-controlled mechanism.
I can't think of any way to have a good UX to opt in or out of "tracking" cookies which people would actually use
Virtually any UX is better than cookie popups as they are now, cause they get designed with interests of a site owner in mind. This alone makes it the worst possible UX on average.
And yes, it's mostly selling garbage, but that's hardly unique in 21st century capitalism.