Unlinking steam account should be an automated process

The forums are full of people having trouble with their poe accounts (myself included). The response from GGG is really lackluster, "write an email to the support team". There is people in here who have contacted support two weeks ago and still haven't gotten a response.
Why is unlinking your steam or playstation account such a horribly slow process?
If I can login to my steam account and through that,into my POE account, why can't I just unlink them myself?
I've created my account over 12 years ago, I don't have the original email address anymore and I can't remember the password either,because I always logged in through steam.
All I want is to create a new POE account and link it to my steam so I can play. Why is so difficult? Just add a button in the account settings "unlink" account.