By Cam Vigliotta My father, a man of many opinions, once compared non-alcoholic beer to politics. “It never changes and I’ve always found it entirely unpalatable,” he grumbled. To his credit, I think most of us would agree with the glass-half-empty sentiment: for forty-plus years, the non-alcoholic beer segment hadn’t changed much, and what was available wasn’t exactly good. That’s due in part to the fact that non-alcoholic beer has always been a beverage of purpose. It’s for the pregnant mother who can’t drink, for the recently sober dad partaking in “Dry January” or the designated driver who…