I was born in India, and the best resources I have to learn about the history of my ancestors were written by German anthropologists in the 1920s and 1930s. Just because they came from an increasingly xenophobic society, does not mean that categorization should automatically apply to them and their work. The most biased historical perspectives, interestingly enough, seem to come from Indian scholarship - usually by claiming the authors of the Vedas knew everything there is to know about science and the natural world.
The reason I take the time to even write a response here is because propagating a biased view of history can harm people. A vast majority of Indians believe that Ayurvedic remedies are more effective than modern medicine, and many pay for engaging in this widespread anti-colonial perspective with their lives.