The world in which a natural human trait(hatred) is totally eradicated.
Idk but a world like that would feel hollow as hell.
So I ask the base this...if possible would you give up the ability to hate?
P.S. I'm not bashing Noodles or J-man's dream.
I dont recall them ever saying they want to remove hate from the world.
They just seek to have love and understanding become the main expressed trait instead of hatred.
There is a cycle of hatred in naruto. Jman and Naruto seek to stop that cycle.
Here is a example of the cycle of hatred, and then a example of what it would look like in naruto and jmans dream.
Ninja from the hidden rock kills a mist ninja. The mist village, or the ninjas family hate the guy for killing that ninja, and then attack that rock ninja, or his family.
Then someone gets hurt, or killed. The rock ninjas family then attacks the mist villages family. Then in their fight, eventually a sand ninja gets caught up in the cross fire. Then his friends/family attack both ninja familes. They kill someone.
Naruto/jmans vision of the cycle of hatred, would be this.
Rock ninja kills mist ninja. Mist ninja hate the rock ninja. However they forgive the rock ninja, or just endure their loss, not wanting any more blood shed(or perhaps the mist ninja get revenge first then forgive and come to an understanding). The hate isnt gone. It is just endured. Others gather around the perso who has hate, and help support them, and help them get through the tough time.
A world without hatred is only scary when it is forced. When it is removed through force(such as Eye of moon plan).
I should rephrase that. A world where people are not capable of hate at all could be scary. A world where people choose not to hate, is not bad at all.