Filly, the British did not 'invent' concentration camps, and using it in the same context as Nazi death camps is to be misinformed.
During the Boer War there was an outbreak of fever (scarlet fever, I think), and Boer women and children were segregated as a precautionary measure, with the aim of treating them. Viewed with modern eyes, the action may seem clumsy, since so many of them died in the camps - but they died of scarlet fever, not from any policy of ethnic cleansing.
The Brits have never been that shite.
And incidentally, the NAZI party was, according to its name, a socialist party. Regardless of that, right-wing, left-wing tags are of little historical use. Stalin killed six times more people that Hitler, but in many colleges and universities event today, his name is revered.
Does it hurt less to be tortured, imprisoned, gassed, or starved by a left-wing tormentor?