There's been tons of people in my world (10000+ years old rn btw) who randomly become evil and immortal, any particular reason for this?

Couple edited people with evil and immortal trait, and also most biomes in the game

https://preview.redd.it/ma37az9hithe1.png?width=968&format=png&auto=webp&s=0b4efebce5581c90609a68b2af57b092eb6202c6