90-95% of type diabetics have type 2 diabetes. Of those, around 95% can completely eliminate insulin dependency by straightforward dietary modifications. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6104272/
Under what moral framework should these people (around 90% of diabetics) receive insulin at others’ expense? I can see at least a first-order argument for having everyone else pay for obligate insulin dependents’ medication, but I struggle to see an argument for foisting the cost of an entirely preventable dependency on everyone else.