Holocaust-deniers and those who trivialize and downplay the extent of the Holocaust ought to read this story: "A Jewish girl's pendant was found at a Nazi camp - and now Yad Vashem is looking for her relatives. Apendant bearing Karoline Cohn's birthdate and city of birth found at Sobibor isalmost identical to one that belonged to Anne Frank, and researchers are trying to determine whether the two were related." Look at the pendant and tell me it doesn't matter.
Speaking of the Holocaust, an artist named Shahak Shapira has done a service with a project called Yolocaust, which tries to shame people who take selfies at the Nazi concentration camps. I doubt
thoughtless idiots like this can be shamed, but it's worth a try with images like these.