What strikes me always and ever that there is nothing distinctive about Shoah survivors compared to other humans (any of the survivors - not the Jewish ones alone): there was absolutely no reason they were persecuted. All the reasons for persecution were cultural inventions. They were all human beings.
It wasn't any apparent differences or real threats that caused so much pain. It was imagined differences and perceived threats. It was a misplaced sense of privilege on the part of the persecutors and a really warped understanding of the relative importance of human beings. That sense of privilege and of relative worth led to a bully culture and one where the capacity to kill was given to the bullies.
Every year I mourn the millions who were murdered. This year is no exception.