Yes, China was taken advantage of, but NOT taken over, that is the point. I never claimed otherwise, in fact it has been my sole point from the start. Taken advantage, but NOT taken over.
You try to equate the Indian situation to the Chinese one, it is not the same. If it were, we can say Napoleon did conquer Russia, because the Russians were forced to adapt the continental blockade.
Regarding the Opium wars, there's too much to mention here, I recommend to start with Wikipedia, and I can direct you to some books.
First I don't disagree that India is closer had a role to play, but also the fact India had a fractured country at the time played a huge role. Had China had one of its periods of chaos at that time, it would not have been good, see WW2. However, Western forces definitely wanted all of China, as evident by their negotiations, the only thing that stopped them was the fact China was such a large country. In fact after the 8 nation alliance took Beijing, they wanted massive amount of Chinese land, but they didn't get any in the end, because they realized they could never hold onto any if shit really hit the fan.
This is all very well documented.
If you really want to talk WW2, I be happy to oblige. By the time Japan surrendered, Kwanton army had been decimated by the Soviets, Japanese elites were lost in South East Asia, mostly to the Americans. about 30% came in regards to China. At the end of the war, China had just won a major offensive that made the Japanese realize the end was near. China was about to launch a massive counter attack with the goal of pushing to Shanghai.
Keep in mind I take great interest in history, it is a shame I know so little of Indian history, as I am sure i be an interesting read.
https://en.wikipedia.org/wiki/Battle_of_West_Hunan
https://en.wikipedia.org/wiki/Second_Guangxi_Campaign