This is the problem with authoritarians. You see, once you give the government the ability to put someone in a camp, no matter the reason, you'll soon find that the camps start filling up with people inconvenient to the government. You cannot give government that power, ever. Sure, in principle it'd be great for commies and subversives, but guess who'd be labeled "communist" and "subversive" right now if that was enough to get someone put away in a camp? You can have the government jews hate by having a government so weak that the jews could completely subvert it and still have no power over anybody.