When it comes to this sort of thing, I very much doubt if any country is squeaky clean. While Britain didn’t “ invent” concentration camps (that dubious honour fell to Spain in the Cuban War of Independence), it came a very close second in the Second Boer War (1899-1902). If ever there was a “Banker’s War”, that would have had to have been one - being fought for nothing other than the Witwatersrand Goldfields of the Transvaal.
Also, Britain’s atrocities in its own backyard bear scrutiny. For example, look up on YouTube Peter Watkin’s 1964 documentary “ Culloden”. For another example, look up just about anything you like on the Irish War of Independence (1916-1921).
No, the “White hats” - “Black hats” business is by no means as clear cut as we might imagine.