Samemess over diversity. Yep. And all the literature and common knowledge argues for diversity yet governments will always preference the money. If big companies promise economic security via crop production they'll lean to that over other options because these companies will have the money to push it.
It's the same in Australia with dying Aboriginal knowledge of country. Even the words for things are lost. There's push to recover it but it's too little too late.
Sorry for the very late reply! Ugh, time.
Yes, it is so sad. In my philosophical jargon, it is called epistemicide or just neo-colonialism. It is the marginalization and rejection of difference. It is so sad how the people who still harbor this knowledge internalised western modernism and the drive toward sameness so they see their own knowledge as inferior. So many people here where I live still know the names of these plants and their medicinal properties and so on, but they keep it to themselves because they feel it is inferior and "backward". It is really so sad.