I can understand that you are pissed of because you lost your funds but this issue has nothing to do with Authentication, Accounting and Authorization. You gave your private key to an untrusted third party. Thus Authorization is not the problem here because with the private key a bad actor can steal your funds regardless of the password protection.
You obviously don't understand even basic concepts. Can you read your email without a password to your account? No.
I read the whole thread and realized that other users already tied to explain it to you without success. I am working for more than 8 years in Information Security, so I can tell you I got more than basic concepts. Your argument with email does not hold because if you generate your password with an online generator, your account may be exposed to criminals. Furthermore for your email you just use one password to log in. No private key involved here.
If you would use PGP to encrypt your mails and you would use an online generator for your private key, a bad actor could save your key and read all encrypted messages that you receive...
I hope you got it now, because that will be the last time I explain it to you.