There is NO chemistry without physics. Neither happens in a vacuum and simply dogmatically dismissing CICO as a simplistic model is, well, simplistic.
One other thing to think about is that you are using the measurement of glucose as a proxy for insulin levels and assuming a positive correlation. Mrs. Hanson, a T1 diabetic, does just the opposite, and for good reason, that is Susi assumes a negative correlation and when her blood sugars are elevated she increases the amount of insulin she is injecting. If insulin was as easy to measure as glucose, then perhaps the treatment for T2 diabetics would focus on insulin resistance rather then blood glucose levels.
I love wine, and we have almost 600 bottles at the house. The oldest wine I have ever tasted was an 1867 port from Quinta des Carvelhas. I had to spit. I have had no port since since going keto, no Sauternes, no Qualitätswein mit Prädikat Trockenbeerenauslese, but a fair dribble of dry reds over the last few years.
I hope you get this sorted out and best wishes.
Keto for life,