Dear friend, as we know, human civilization has its own history for millenia. And we still can find conflict, which is not so different from time to time.
Do we realize that we are not so different? We more alike than we are not. Our happiness, sadness, anger, despair, they are the same, even the cause are various.
Don't we have a capability of being understand other then? Aren't we a empathize being then?
I won't say conflicts should gone for good. But we have the capacity of compassionate being, so we grasp the meaning of we are more alike than we are not.