One more small point - people here mention how long ago the Holocaust was and far removed from memory. That's not really true. If you look at Pew 2013 poll of American Jews [0] they found:

> About three-quarters (73%) of American Jews say remembering the Holocaust is an essential part of being Jewish

that's above any other option.

[0] https://www.pewresearch.org/short-reads/2015/08/13/70-years-...