I am surprised that you allow yourself to dive, given your own rules about ego.
Unlike you, I AM a medical doctor and a Type 1 diabetic. You are stigmatizing all insulin dependant diabetics with you toxic ignorance. Since you clearly have no idea re: the safety of insulin dependant diabetics underwater then you should defer to the physicians that do. The risks of hypoglycaemia can be completely mitigated before you hit the water, especially if you consult with any general practitioner/family medicine physician. Hell, you can even treat hypoglycaemia underwater at 130’ with a simple tube of cake frosting in your BCD or pocket (and yes, I tried it simply for fun...chocolate is the best!). Even with >10 years of diving I have never suffered a hypoglycaemic episode while diving by following a few simple steps beforehand. Contrary to your skewed perspective, and the movie industry (i.e. Con Air), insulin dependant diabetics don’t spontaneously lapse into comas or seizures without warning. Most diabetics, that don’t intentionally overdose on insulin, actually have their glucose slowly climb upwards if they do nothing at all. Even if we didn’t take the few simple steps to guarantee no hypoglycaemia on a dive, most of us can easily feel the initial effects and treat it well before it is an issue. These are things I discuss with all of my insulin dependant diabetics that wish to dive. I even helped one patient get a waterproof insulin pump rated to diving depths.
It is people like you that lead patients to lie on the medical form and subsequently skip coming to their physician to learn the simple ways to make diving safe for them while taking insulin. I am disheartened to see such discrimination. The ego, to think you know better than the patient (who lives with this daily) and especially their physician (who is specially trained to instruct patients about their condition and how it impacts their activity). A physician doesn’t even need to know a thing about diving as the associated risks (drowning) and ways to avoid/mitigate risk (avoid hypoglycaemia) are essentially the same if the patient were simply swimming at the surface.
If there are any insulin dependant divers that would like tips to improve safety in the water, please just send me a private message.