This concentration camp near Berlin had a wide range of prisoners – political dissidents, criminals, Jehovah’s Witnesses (for refusing to swear an oath of allegiance to Hitler), asocials, gays, AWOL German soldiers, Polish and Soviet POWs, foreign nationals, Gypsies, and Jews.
Germany had severely limited resources – food and materiel and manpower especially. People unwilling to work their fair share for their rations were put in camps, where they were forced to work for their rations.
Obedience, Honesty, Order, Cleanliness, Sobriety
The camp motto explained just what was expected of them: A few fundamental human virtues plus self-sacrifice and loyalty to the Fatherland. Pretty much the same was required of every factory worker in America during the war.
These days we have different institutions for criminals, for the mentally ill, and for hardened criminals. They are all expected to work for their keep.
All others who refuse to work for their wages get welfare, food stamps, free healthcare, and everything else they need to raise as many kids as they want and to train them how to finagle everything they want out of the system when they grow up.