Father Andreas was always clear that Dachau was not a “death camp”, but a punishment camp. Conditions were bad enough that many prisoners died anyway. Father Andreas was chaplain to a group of Monks in eastern Germany who had engaged in anti-Nazi activities, including printing and distributing pamphlets. There was a special section of Dachau for dissent Roman Catholic priests.
My butcher, I think, arrived in Britain before the onset of hostilities. Then he was interned after the declaration of war. The Wansee Conference wasn’t held until 1942, the same year that the Struma was sunk, which emboldened the Nazis to finally think of organized genocide as doable. So as these things go, Dachau was not even in the same ball park as Treblinka or Auschwitz.