LOL there is no cure. Only treatments.
And bypass surgery is just another treatment.
A cure is something you take once that restores your existing body to a non diabetic state and keeps it that way.
Pills, shots, nano robots, surgery, supplements, etc are not cures. They are just treatments.
A cure would be a pill or a shot that ‘cures’ you. Leaves your body whole and self sufficient. One that allows you to eat and do anything you what, as much as you want, any time you want, with total impunity. A cure is something that fixes an existing problem and is only needed one time then it is out of your system.
Radiation is a cure for some cancers, or is it just a treatment?
About the weight loss surgery - that is not now or ever will be a cure. It is a treatment that brings about other problems.
Talk to people who have had the surgery. They can’t eat normally.