The Han Chinese Myth
rhapsodyinlingo.com
rhapsodyinlingo.com
This seems to imply that this label was artificial and the rulers at the time were not actually foreign, but from my understanding the Manchurian dynasty came about through conquest, not voluntary cultural assimilation. I recall reading stories where people were forced to cut their hair into queues (before this, long hair in men was the norm, as with many cultures). Granted maybe this is all revolutionary historical revisionism, but either the mainstream story is very far off or the author's take is either very contrived.
I do agree with the author's conclusion that the southern languages should be preserved, a lot of research suggests that Classical Chinese is more similar to modern Cantonese. That Mandarin became the "official" flavor of Chinese is largely a product of history and politics.
This is often claimed, but usually starts by taking Mandarin as given, then adding knowledge of Cantonese and observing that it allows reconstructing more features of Middle Chinese, like the final consonants -p, -t, -k. However, if you take Cantonese as given and then add knowledge of Mandarin, you can also reconstruct more features of Middle Chinese, such as the distinction between alveolar and retroflex initial consonants (s- vs. sh-).
Neither Mandarin nor Cantonese is closer to Classical Chinese, the exact same amount of time has passed for both of them. Only when you combine knowledge from both, you can get closer to their common ancestor.
The game of "my language is the most ancient" is a common pastime among language preservation activists (not just in China, you can also get Romance speakers to argue who is closer to Latin etc.) but I don't think it should be necessary. Languages are preserved by being used, and most people don't choose to speak whatever language they use because of how ancient it is, but because it allows them to communicate with other people.
The concepts of different people being, well, different, existed before Darwin did. The article is confusing semantics with concepts
* The word nation came from the Old French [8th-14th century] word nacion – meaning "birth" (naissance), "place of origin" -, which in turn originates from the Latin word natio (nātĭō) literally meaning "birth". - https://en.wikipedia.org/wiki/Nation