We now have concentration camps in this country.

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57. The term "concentration camp" predates the Nazis by decades

It originated in theSpanish-Cuban war of the late 19th century and in currrent common use includes many cases besides Nazi Germany:

A concentration camp is a prison or other facility used for the internment of political prisoners or politically targeted demographics, such as members of national or ethnic minority groups, on the grounds of national security, or for exploitation or punishment.[1]

Prominent examples of historic concentration camps include the British confinement of non-combatants during the Second Boer War, the internment of Japanese, German, and Italian Americans during the Second World War, the Nazi concentration camps (which later morphed into extermination camps), and the Soviet labour camps or gulag.

- https://en.wikipedia.org/wiki/Concentration_camp

Note that concentration camps are distinguished from extermination camps. Not all concentration camps involve deliberate mass murder of their prisoners. The Holocaust is not the only example of a concentration camps.