>Much of South India and Eastern India was already British ruled by the early 1800s.
No they were not. They were run by private East India Company. With the revolt of 1857 and quashing of the rebellion, the official Raj by the British Royals began
You are still bickering over pedantic stuff. Britain profited from slave trade. They just didn't want to use the term "slave" and used "colony" instead.
Britain ended slavery and started colonization. But yeah "they ended slave trade"
No amount of info will convince people that colonization was evil and abhorrent because they were party to it, they benefited from it.