No. As long as two or more people exist there were will be disagreement. Eventually one person comes to believe their way is "the way". No one wants to be told their way is the wrong way!
Only in marriage do you find a scenario where people will attempt to appease those they are "in love" with. That's because compromise feels better than heartache. When there is no emotional investment or anything to be "gained" there is very little incentive to stay together or live in peace. Trust is also difficult to maintain.
Secondly it's human nature to be "competitive". Groups will always feel their country, race, or religion is (superior) to other groups. In some instances people are willing to die when they feel their way of life is being threatened. Many wars are fought to avoid change.