I have thought about the 30K+ Non-catholic Denominations dispute. The gist I hear from Catholics is that these various denominations are splintering Christ and all should come home to the Catholic Church, the One and Only True Church.
The idea that the various Christian denominations outside of Catholicism are in some way unified can be seen in the various groups with their various charisms within the Catholic Church. The Dominicans, the Franciscans, the Jesuits, the Benedictines, are all Catholic Denominations. Each has their part in strengthening the body of Christ in the way in which they feel called. Their focus is Christ but in each their own way. The way of the Franciscan differs greatly from the Jesuit, yet both build up the body of Christ and because they are under the umbrella of Catholicism they are not viewed by Catholics as a different Church or a different denominations, but to non-Catholics that’s exactly what they are.
And so it is within the non-Catholic denominations. The Baptists have their charism and draw unto themselves those that follow Christ with the Baptist focus, and the Methodist, and the Evangelical, etc. These groups are not separate from The Body, but they are different parts of the same Body. Therefore, non-Catholic Christians do not agree with the Catholic perspective of a splintering of Christ’s mystical body with the various part of the body all doing their part as they discern their walk with Christ.
Just as if we look at a part of a physical body as an individual cell or piece under the microscope and we looked no further; how could anyone see a human body in their microscope if he was only looking at a single hair? But if you step back and look at the body as a whole and then look again at that hair you begin to see how beneficial this single item it the body as a whole.