You can't be serious, like every major site out there will send you an email link with a "password" unique to that user/email that will one-click opt-out. I bel

You can't be serious, like every major site out there will send you an email link with a "password" unique to that user/email that will one-click opt-out. I believe this is due to US regulation, but it's clearly technically implementable and safe.