That would be dreadful if true and a great attack on, indeed a refutation of, the Church's claims. The Church Catholic is for all and it touches every aspect of life. It is catholic intensively and extensively, in principle if not in fact. It is for the 80 IQ and the 120 IQ, for the 60IQ and the 140IQ and so on right out to the ends of the scale. If not it is not catholic.
I'm sorry, but I feel very strongly about this. I have baptized seriously retarded children, and though I was an Episcopalian when I did it, I didn't baptize them into a "denomination", I baptized them into Christ and His Church. So we teach, and so I believe.
We must consider that wisdom comes from God, It is infused, a gift, whose first manifestation is the "fear' of the Lord.
And wisdom gives us to understand, even without reading I Cor 12, that none of us can do everything, and that all of us in some things must be humble. I cannot do foot surgery, and I obeyed what my surgeon said. My surgeon cannot (or, at least, does not) do theology and should "obey" (from "ob" + "audire" -> listen intently) to those who under the aegis of the Church do "do theology.
I am a not so bad arm-chair theologian. A man I very much admire and who influenced (unbeknownst to him) my choice of my name in religion is leaving our parish to go and do doctorate in ST with an emphasis on Sacramental Theology. You can bet your, ah, bippy I will "obey" him -- though most of my obedience will be querulous and argumentative. He's smarter than I, not LD, and is going to study with some good guys.
Protestants who think nothing pf trusting their money to financial planners or their health to physicians, seem unable to understand that a relationship with Christ which might lead to someone's being a dazzlingly bright beacon of Sanctity does not necessarily qualify one as a theologian. A physician who only understands the biomechanics of football but who couldn't throw a football ten feet, may still be a legitimate authority for some aspects of John Elway's life. The trainer is not the athlete and does not wear the wreathe or the medal, but he still has legitimate authority over some aspects of the athlete's life. The race is ours, is each individual's to run, but some are better qualified to give advice on how to run than are others.
Some of our brothers do not understand this. They are still fit to run, and indeed called by God to run with us and wearing the same colors. That they are froward and will not accept the qualified trainers does not excuse or disqualify them from the team.
The one with the 80 IQ who becomes Catholic is much smarter than the one with the 140 IQ who spends her days persecuting Catholics based on anti-Catholic lies and false charges.
I might go a little farther though. :)
Some are meant to be Catholic and God is with them.
Some are meant to be Protestant and God is with them.
Some are meant to be "other" and God is with them.
God is with all who wish to be with Him.