Nonsense. Such inane argument is on a par with the belief that going to the doctor reflects a lack of faith in God's providence.
Your analogy is wrong. Anything that makes divorce easier has a tendency to undermine marriages. If it is more expedient to terminate the patient (ailing marriage) than to go to the doctor to get treatment (counselors etc.) and there is little or no consequence to the one who terminates the patient - death is imminent.
Nope, Dave Ramsey says that Pre-Nuptuals are a symptom of distrust - a very bad sign. He regularly catches couples with His/Hers checking accounts and when he does he directs them to examine the Trust issues in their marriages and says it is not a financial issue but a Marital issue for possible counseling.
From one Steve B to another...
Maybe it's more like having a euthanasia or assisted-suicide declaration in place, something that says "If I get really sick, just put me out of my misery"? The underlying attitude I'm struggling with is the sense that the prenup offers such an easy way out if the marriage goes through a season of struggle, which many marriages do.