Coming from NorCal, everyone seems to think they are an expert on what 'authentic' Mexican food is, even if they've never been there or only to a resort. There's also a strong tendency toward fetishism of truly crappy food, which people cutely term 'simple' or 'rustic' but which often is in fact poorly prepared and overly salted and made from the cheapest of ingredients.

It's a shame, because these people seem to be unaware of how large a country Mexico is, with myriad cultural influences and traditions, regional variations, and a vibrant modern food culture, especially in regards to Mexico City.

The taco truck under the BART tracks in Oakland with the $6 heart-attack (and heart-burn) burritos doesn't serve traditional/authentic Mexican food, it serves traditional Cali/NorCal Taco Truck food. If you love it, that's great, but honor it by celebrating what it really is, which is a separate food tradition that is wonderful in it's own way.