That's not true. Nothing lasts forever, humans must grow past the greed and hate at some point, in order for us to evolve. We're just about ready, some people aren't.
Greed & hate. Been there since beginning of time. And always will be.
It part of the bigger picture of being human.
Accept it. Or forever keep your head in the sand.
Yes, ego's a part of being a human. Luckily, you're a soul going through a human experience, the soul part functions too! You don't have to act like a human, you don't have to kill, you don't have to control people, you don't have to hate.
You can actually just choose to love. Though, you seem complacent that people can be at war and it's only part of the bigger picture. Who has their head in the sand?