I have a better idea, bake in ID in browsers, then make the website/script request the ID and the user can choose if they want to identify themselves or not. A

I have a better idea, bake in ID in browsers, then make the website/script request the ID and the user can choose if they want to identify themselves or not. A basic ID should only be a public key. Then the browser can make a "signup" request where they can get more info about the user. The user id can then be used for a passwordless login. Kinda like Google or Github ID but built into the browser, standardized and easy for developers to integrate. For extra security client certificates can be used (but current implementations need to be overhauled) and second factor hardware keys can be used for additional security. Ad publisher do not need to have the same level of security as bank id, so there need to be something very basic and easy to implement as well.