Mmmm, okay. Here's part of what those verses mean to me. Paul proclaims Christ crucified. To those seeking wisdom, Greeks using logic and rationality as the highest standard of judgement, this appears to be foolishness. To those who are called Christ crucified is the power and wisdom of God. The foolishness of God exceeds the wisdom of man.
Even pale images of this event such as Gibson's movie have an attraction that can't be explained on a solely rational level. The event itself and the images of it are, indeed, horrific. On a rational level, a normal person would not want to look at even cinematic illusions of torture and death. Or even think about it, or meditate on it. Or proclaim it to the world. St. Paul would probably agree with you completely, it doesn't make sense on purely rational level. It certainly took several unusual events to make Paul see things differently than he did when he was zealous for persecuting Christians.