here's the examples of Survivor guilt in Ani-toonspiracy

• Hiro Nakamura: lost 7 billion people from his home universe(save for Emile Danko)
• Flippy and Splendid: lost Sneaky, Mouse Kaboom, and SSSSSSquad respectively
• Adam Jensen: lost Hajime Kindaichi and latter's gang
• John Price: being sole survivor of Task Force 141, this leads to he murders everyone in Nolan's Gotham city
• Arkhamverse!Bruce Wayne: for being last living Justice League member of his native universe