You should be careful about letting a reasonable aversion to hipsterism become a tic. There's nothing sanctimonious about finding wholegrain sourdough bread tasty and processed bread flavorless (and it is; there's a reason the bread you buy has honey, vinegar, buttermilk and a bunch of other ingredients).
The preference is not inherently sanctimonious, though it is in the minority—over 80% of bread sales are white bread. But the article was certainly written in a sanctimonious. Asserting “my politics are better and the bread I like is tastier” is certainly sanctimonious. (Either one standing alone would be fine.)
