@oralloy,
Indeed. Therefor, the Nazis build, in 1933, several concentrations around Berlin, to get the left out of business
The photo below (from August 1933) shows the head of the German public radio corporation, a radio commentator, a high-ranked civil servant, two Social Democratic politicians (Friedrich Ebert jun and a regional leader) arriving in Oranienburg-KZ
So, all what you propose isn't new at all.
And it worked well ... for a couple of years.