The holocaust happened because good people didn’t reach out – of course the holocaust happened from Hitler’s jealousy – but the Rebbe taught us to reach out to everyone, to share with them – the 613 laws of the Torah for Jews, and the seven Noahide laws for gentiles – now when we do this, two things happen, firstly people learn good from bad, but more importantly, we eliminate jealousy, for jealousy is feeling abandoned by society!