The user is held hostage as much as the platforms because it's used as "currency" to force other sites to do things they may not want to, i.e. create accounts u

The user is held hostage as much as the platforms because it's used as "currency" to force other sites to do things they may not want to, i.e. create accounts using private emails, and the platforms are held hostage by these same users expecting to be able to create accounts using their legit or private icloud emails. It looks like some kind of "who will break first", is there a service big enough to be able to block all icloud emails and it'd be a sufficient inconvenience to force apple to rethink how private email works ?