The really charitable thing to do would be to recognize that there are indigenous, albeit relatively young compared to the old world, American ethnic groups wit

The really charitable thing to do would be to recognize that there are indigenous, albeit relatively young compared to the old world, American ethnic groups with their own culture and cuisine. This is a consequence of demographic change. Historical Americans are just another set of ethnic groups now, equal with any other. Another big reason for the decline in the quality of these cuisines is that the old people who know how to make them are retiring and dying and their descendants aren't interested in maintaining their own culture.