There are at least 8,000 Protestant denominations. Many estimate the number to be more like 20,000 to 30,000. It is hard to tell since there are so many break-away factions from the mainstream Protestant denominations a.k.a. "non-denominational" churches.
This drove me nuts when I was a Protestant. I had been in enough different churches to have known men and women who were truly in love with Jesus and very sincere about their love and faith. But if there is one God, why are there so many divisions among His people?
Jesus prayed for all believers to be one (John 17:20-23). Denominations seemed so contrary to the will of Jesus.
I was left with the question, "Which one is right? Which one contains the fullness of what God has for the world?" It took me about a year and a half of prayer and digging and listening to God.
My question to all Protestants is this - who built your church? Who was responsible for its formation? Was it John Smyth (Baptists), Charles Mason (Church of God in Christ), Martin Luther (Lutherans), John Calvin (Presbyterians), John Wesley (United Methodists), or someone more recent in history as in the case of each small non-denominational church throughout the world?
The Catholic Church is the only Christian church who claims to have been created by Jesus. They trace their history all the way back to Jesus! This is incredible and AT LEAST worth looking into to see if it is true. I don't know John Smyth, Charles Mason, Martin Luther, John Calvin or John Wesley. But I know Jesus, and I want the Church HE formed! If you look at the evidence and disagree, fine. At a minimum you will have more knowledge of church history.
Imagine how strong we could be against Satan if we were united as one?!