Then you could add this discussion to the paper.
Thanks for the suggestion! I've added the discussion to page 21 and rewritten most of page 20.
Very good!! But if I were you, I'd try harder to find examples of non-White women slave trade. Once could even consider modern trade of Nigerian prostitutes into Europe as a sort of slave trade? Just playing devil's advocate here but you need to consider all possibilities when dealing with such a thorny issue.
EDIT 1: You probably should dedicate a separate numbered section to this issue. For example, I found this: "While in the 19th century the British in India began to adopt the policy of social segregation, they still kept their brothels full of Indian women. In the 19th and early 20th centuries, there was a network of Chinese and Japanese prostitutes being trafficked across Asia, in countries such as China, Japan, Korea, Singapore and British India, in what was then known as the "Yellow Slave Traffic". There was also a network of European prostitutes being trafficked to India, Ceylon, Singapore, China and Japan at around the same time, in what was then known as the "White Slave Traffic". The most common destination for European prostitutes in Asia were the British colonies of India and Ceylon, where hundreds of women and girls from continental Europe as well as Japan serviced British soldiers".
In the 16th and 17th centuries, Portuguese visitors and their South Asian (and sometimes African) crewmembers often engaged in slavery in Japan, where they brought or captured young Japanese women and girls, who were either used as sexual slaves on their ships or taken to Macau and other Portuguese colonies in Southeast Asia, the Americas, and India. For example, in Goa, a Portuguese colony in India, there was a community of Japanese slaves and traders during the late 16th and 17th centuries. Later European East India companies, including those of the Dutch and British, also engaged in prostitution in Japan.
This is a good starting point for a less biased view: https://en.wikipedia.org/wiki/History_of_prostitution