New Amazon Headquarters Sparks Feud Among Indigenous South Africans (nytimes.com)

> South Africa’s Indigenous communities were decimated over the centuries through genocide and the racist apartheid policy — so it is now often unclear who has the authority to speak for Indigenous people.

Do they have a specific (unstated) tribe in mind here? Because https://en.wikipedia.org/wiki/Demographics_of_South_Africa shows steady population growth for all groups, and very fast growth starting with the 20th century.