True, but man is not alone: the very fact of the Incarnation proves that. The leadership of the Holy Ghost is something promised to the Church and her continuing existence proves it, just like the state of Protestant disarray proves its absence.
It's too bad the Holy Spirit doesn't love all believers equally in Catholicism. Notice the difference in that we would say Holy Spirit DOES love and lead you personally, even though you are a Catholic. However, your particular assembly (I'm trying to emulate the Pope here :) holds that Holy Spirit only leads your Magisterium on important matters. That's the elitism that Paul spoke against:
1 Cor 1:13-15 : 13 Is Christ divided? Was Paul crucified for you? Were you baptized into the name of Paul? 14 I am thankful that I did not baptize any of you except Crispus and Gaius, 15 so no one can say that you were baptized into my name.
When Paul saw the glorification of men coming, he struck it down and refused to participate. How things have changed. Elitism divides God's Church. You speak of "disarray among Protestants", but there is none among Bible-believing Christians. Of course I have minor differences with other Protestant posters of different denominations, but it is the simplest thing for us to unite as one against the error and elitism we see in modern day Catholicism. You know that the Reformers you see all the time around here come from different churches, but you also know that we speak virtually with one voice on the vast majority of issues. There is no way you can tell me that the various Catholics on these threads are any more consistent with each other than the Reformers who you know.
If by "Church" you mean the papacy, then your statement is like saying the Soviet Union was good because it was a large, burdensome, overbearing, misguided, ill-conceived, foolish, totalitarian, destructive behemoth compared to the 50 states of the USA.