When Barnabas and Paul split up, the Gospel spread twice as far in the same amount of time. And when I notice there are five Baptist churches in this very small rural community, I rejoice - because each of them has a ministry different from the next. One attracts elderly people, another couples, another small children, another charismatics, another families.
So while you may be troubling over these differences, I shall be rejoicing and praying "Thy name be hallowed, Thy will be done, Thy kingdom come" - my "no strings attached" prayer.
Christ prays for our unity, and St. Paul cries out "Is Christ divided?" I doubt they would agree with you.
However, there is a divine providence in that. If the Orthodox did not separate in 1054 we would not have their powerful witness to the Church of the Seven Councils today. If Luther did not leave the Church, we would not have a warning in front of us on how not to do Church.