Woody, I really don't know how these stories get started, and this is a new one for me. There's no doubt that drinking to excess can cause harm, particularly to the liver. And any Type 1's like me who have overindulged from time to time will know how it can be a cause of hypoglycemia. But that any alcohol at all causes neuropathy is frankly bizarre in my opinion.
If you ask me, the only certain cause of neuropathy is elevated blood sugars and associated hyperinsulinemia. This causes glycation reactions to nerves and proteins throughout the body. In other words, all the complications associated with diabetes. If a glass or two of wine helps to stabilise your blood sugars, as you say it did for you and it certainly does for me, then this is surely protective against neuropathy.
I'm not cancelling my red wine helath insurance policy, that's for sure.
Cheers!,
fergusc