It seems that the Protestant gives The Truth of Christ rather than the Catechism or other Catholic teachings.
Only if you subscribe to the belief that temporary statistical trends point toward theological truth.
I hear Islam's numbers are booming, too.
Evidently you are not familiar with the truth of the Catholic Church?
Do you read a bible? You got it from the Catholic Church.
Do you say a Creed at your Church — either the Apostle’s Creed or the Nicene Creed? You got it from the Catholic Church.
Do you honor the twelve apostles? You got them from the Catholic Church.
The Catholic Church is the one, holy, apostlic and Catholic Church.
Everything else flows from the Catholic Church.
Read the thread — How Old Is Your Church.
The ignorant are easily swayed.