Q: Changing security questions is impossible

this link only shows in the US version, and I'm in Asia duh

No, the country where you are is irrelevant, the reset link will show if you have a verified rescue email address on your account (an additional/alternate email address is different) - if you aren't getting the link you don't have one, you will have to contact Support in the country where you are (and which is therefore the country on your account) to get the questions reset : Contact Apple for help with Apple ID account security

If your country isn't on that page then try this form to contact Support : https://www.apple.com/emea/support/itunes/contact.html

When they've been reset you can then add a rescue email address for potential future use : About your Apple ID email addresses - Apple Support

Or if it's available in your country you could change to 2-step verification : Frequently asked questions about two-step verification for Apple ID

AS I said, the reset link does NOT show

As I said, that means that you don't have a rescue email address on your account, the country that you are in is irrelevant.

I have gone through every single alternative effort to get it solved otherwise

You've used the form in my above reply ? What did they reply with ?

Apple support is also now on Twitter if that helps

To reset your Security Questions, you need to contact Apple Account Security Team. To help you locate the number associated the on your current location/country, see this page:

Contact Apple for support and service - Apple Support

Once you're connected, ask for an Account Security Advisor.