How did the Holocaust affect the world moving forward?

Explanation:The Holocaust was a watershed event in human history. In the aftermath of World War II, the world—from individual nations to the United Nations; from religious leaders to professionals in fields as diverse as law, medicine, and science; from presidents and prime ministers to private citizens—confronted its legacy. Many of the issues raised by this cataclysmic event continue to have an impact on our lives and the world in which we live.

They are engaging in cross-complaining.
This happens when one person starts complaining about something the other person does, and then the other person starts complaining about something the first person does, and so it goes on and on until they either make up or have a fight.