Here is one quote that turned a Protestant Roman Catholic:
Make no mistake, my brothers, if anyone joins a schismatic he will not inherit God’s Kingdom. If anyone walks in the way of heresy, he is out of sympathy with the Passion. Be careful, then, to observe a single Eucharist. For there is one flesh of our Lord, Jesus Christ, and one cup of his blood that makes us one, and one altar, just as there is one bishop along with the presbytery and the deacons, my fellow slaves. In that way whatever you do is in line with God’s will.
That’s a plausible motivation for switching teams. If you don’t switch, you don’t inherit the kingdom of God. Stakes appropriately raised. Attention gained.
But then you need to remember it’s a post Vatican 2 world. In that case, becoming Roman Catholic is mainly about being a superior sort of Christian.
I’m a Better Christian as a Catholic
As a younger Evangelical, I was amongst the first to throw stones at my Catholic brethren. In fact, there were times and situations in which I wouldn’t even have considered them to be Christians.
“Catholics aren’t Christian,” right? And, sure, some likely aren’t.
But that needn’t be the case. My life, I hope, and my experience should serve to provide a contrasting picture against the one that many of us might have. My experience and many others, I should add.
The Catholic life, lived to its fullest, has been so incredibly enriching to me and my faith. Through a deeper focus on prayer, through my experience living amongst the saints, through a more global perspective, a deeper reverence for God in worship, and through a much more healthy and hearty view of sin I’ve become, far and away, a much better Christian than I ever thought I could be.
It’s not about being Christian or not. It’s not about entering the true church and leaving behind heresy. It’s like going from a Subaru to a Lexus.
Who are you to judge? Judge, but only up to the point short of condemnation. We’re all Christians now post 1965, but some Christians have more championship banners.