What you say is correct, both India and South Africa have had bad experiences with the U.K. over the years because of various conflicts, but time heals the rift of wars. India and South Africa don't really have any animosity against the U.K. today as the U.K. doesn't possess any influence or interests in those parts of the world anymore.

Like all empires before and since in history, the British Empire was both good and bad. The British Empire was pretty haphazard in its organization, but still relied on wealth and a powerful military to hold it together. Some parts were held and controlled directly like British India, others were given almost complete autonomy like the British Commonwealth nations of Australia, New Zealand, Canada, etc.

Mind you, The British didn't do anything worse than many other countries. America conquered the Native Americans and annexed Hawaii and the Philippines in the Pacific using force. France, Germany and Italy all carved out extensive foreign colonies too at the point of a gun in Africa. Even little old Belgium ended up running a gigantic part of the continent called the Belgium Congo.

People complain about the British moving into india and eventually supplanting the crumbling Mogul dynasty. Yet these critics conveniently forget to mention that the Moguls were themselves a foreign, Muslim, dynasty that used force to conquer India in the first place! The British did do good too. They introduced the steam train and build the rail network and many other engineering projects around the country that wouldn't of happened otherwise.

The reason the the British Empire comes in for such over the top criticism today is probably due to the extensive American influence in the world media. I'm not having a go at you, but it's always been 'tradition' for America to take a dim view of the British Empire alone, because of the American Revolution. Unfortunately, Brit bashing in the guise of serious historical epics has become very fashionable lately. Anyway, saying that, I would agree with your comment that both America and the U.K. both have chequered pasts. All nations, civilizations and people have both good and bad in them...