The US Army hasn't conducted a concentration operation on US soil since 1942 (when it rounded up and incarcerated Japanese Americans), but the Army has recently put out a detailed manual for its operatives to follow when doing so again - on short notice, it would seem.
Just supposing the technique could have some validity when and as carried out by the US Army, why must the equivalent technique carried out by German forces in times of dire conflict (chiefly after the war with the Soviet Union started) be a crime against humanity? Because Jews were prominent among the explicitly targeted subjects of the action?
All I can say is, Army, whomever you round up in this process in the future, do not round up any Jews. If you do somehow round any up, immediately let them go with apologies and lavish reparations (to continue for as long as they live).
Or is that already in the manual?