I have seen these arguments alot lately. What they don't take into consideration is that diabetics have to use artificial sweeteners. And we buy caffeine free pop. So we do buy caffeine free diet pop. I started drinking diet pepsi 30 years ago and have had no ill effects from it.
I realize this is important to you and I am not knocking your views. But for me I have few options for a diabetic but to use the artificial sweeteners. It is an issue we have discussed and will not be changing any habits.
I do try to limit how much I drink tho.