Why there're?still so many disputes in the world?

What had happened couldn't be cancelled,so Aren want to kill the murderer who deprived his happiness.

The main reason may be the contradiction betweendifferent minds.Actually,it's what the Aot mainly drawing about.

As long as people have contradictory minds, there will be disputes .

What we can do is only get understand with each other or just sestroy the minds?different form us.

What they had done is right or worng? There's no answer.In the end of aot , the people who lived from the rumbling choose to get understand each other.Maybe also for us，it's significant to accept the difference between ourselves with others.