I don't want it, but it seems where things are heading. I'm just being the weatherman.
Also, small societies tend to be very considerate of the other members. They are more forgiving and understanding. The leaders know more of the individuals and therefore care about their wellbeing. The larger a country/government gets, the less consideration of individuals and the less freedom. Many smaller nations would prevent the global meddling that the US is currently guilty of committing. It would put people together with those that had at least complementary beliefs. It would reduce the stealing from one group to give to another. All of that is good and peaceful and would be better than what we have.
On the other hand, we have reality. There are too many people who would not allow a peaceful transition, so I am not currently advocating for a split. There is no reason a peaceful split can't be done other than tyrants don't want to let anyone leave their sphere of control.