I don’t think the Brits behaved all that well in India during the 19th or 20th century. Or the Caribbean for that matter. Or parts of Africa...
If one is being honest, the Brits were vicious underhanded bastards during much of their history, and they engaged in activities and behaviors that would be regarded with absolute abhorrence by most modern sensibilities.
Much of British Wealth and power came from the drug trade into China. They thought nothing of beating, whipping, executing and shanghai-ing people into their armies/navys and making them fight. They thought nothing of exterminating anyone who opposed them.
Like I said, the Brits were often very vicious bastards.