I can think of the clear example of British imperialism in India in the 19th and 20th century but what would you say a clear example that proves this is?
I am not sure what aspects of Indian behavior under British rule would have been "Occidentalist".
At the fundamental level, Said's critique was that the political circumstances of knowledge production bias the knowledge produced, which can be universalized. But Orientalism is more than that. It refers to the particular implementation of that knowledge into a colonial context, with specific referent to the knowledge produced in by the rulers about their subjects. Without an eastern power establishing a colonial endeavor in the west, we lack the basic power structure necessary for Occidentalism.