Final answer:
The quotation that supports the thesis of negative impact of imperialism on Indigenous Koreans is that they were forced to attend and bow to the gods of Shinto.
Step-by-step explanation:
The quotation from the excerpt that best supports the thesis that imperialism negatively impacted Indigenous Koreans is:
O "They ordered everyone, Japanese and Korean, to attend and bow to the gods of Shinto."
This quote shows that the Koreans were forced to embrace Japanese cultural practices, such as the Shinto religion, which eroded their own indigenous culture and beliefs. This imposition of Japanese customs was a way for the imperialists to exert control and dominance over the Korean people.
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