As I see it, the problem is that the email address has been conflated with your identity, and that is extremely problematic. It should only ever have been a somewhat transient reachability identifier. As an identity it then gets linked to concepts like authorization and trust, eg "we'll send this code to your email, because we implicitly trust that only you can see your email, and that youll always be able to get to it."
Every so often one sees a cri de coeur from someone who has learned this lesson the hard way when Google locks them out of their account, the key to their digital life evaporates, there's nothing they can do about it.
Alternative identifiers exist, eg handles on sites like HN, but they are second-order artifacts of the email as ID.
Given the stakes, then, you have to decide whether to try and control your identity by bulding your own infra for email (domain, mail server, dkim etc and a fair bit of hell), paying for someone to run the infra (eg getting a proton or fastmail address), and hoping they dont enshittify or fail, or letting Google or Microsoft control it and hoping you dont fall foul of them. All these options have drawbacks.
Side musing follows: I dont know what the solution to identity is on the Internet. A very long time ago, X.509 certs issued by quasi government authorities was mooted as part of a international directory system. I can see a future authoritarian state falling in love with this idea again, esp with the resulting lack of anonymity,..but also the ability to "kill" people on the Internet simply by revoking their cert.
Not just email - today it's almost impossible to have a decent life without a (smart) phone and being tied-in through OTP verification.
All these things have become so essential that it's shocking that it's not regulated like a utility (or even as a right given their systemic imposition).
Every so often one sees a cri de coeur from someone who has learned this lesson the hard way when Google locks them out of their account, the key to their digital life evaporates, there's nothing they can do about it.
Alternative identifiers exist, eg handles on sites like HN, but they are second-order artifacts of the email as ID.
Given the stakes, then, you have to decide whether to try and control your identity by bulding your own infra for email (domain, mail server, dkim etc and a fair bit of hell), paying for someone to run the infra (eg getting a proton or fastmail address), and hoping they dont enshittify or fail, or letting Google or Microsoft control it and hoping you dont fall foul of them. All these options have drawbacks.
Side musing follows: I dont know what the solution to identity is on the Internet. A very long time ago, X.509 certs issued by quasi government authorities was mooted as part of a international directory system. I can see a future authoritarian state falling in love with this idea again, esp with the resulting lack of anonymity,..but also the ability to "kill" people on the Internet simply by revoking their cert.
All these things have become so essential that it's shocking that it's not regulated like a utility (or even as a right given their systemic imposition).