It was Jesus who condemned the idea of only the fit should survive, and His support were the scriptures regarding how the meek would inherit the earth. Then Jesus walked-the-talk by healing misfits and the diseased, sealing forever the false idea that the strong or fit had any real advantage in this world or were God's chosen people or that natural selection was part of God's plan.
The term "survival of the fittest" is so commonly misused and misunderstood (as within this very thread!) that most biologists today hardly use it at all, especially when communicating with the general public. The original meaning has been so mangled, especially by the modern day tendency to confuse the theory of evolution with
Social Darwinism [as Skywriting just demonstrated], that its misuse has taken the word far beyond its original use in describing
natural selection.
Fitness in the context of evolutionary biology has a very specialized meaning that is in sharp contrast to how most non-biologists use the term today.
This "fitness" is not about mere "superiority" in terms of being bigger, faster, smarter, or better in ANY way other than reproductive success. Accordingly, many biologists have tried to abandon or at least redraft the phrase to make it reasonably compatible with the theory of evolution, replacing "survival of the fittest" with
"survival of the fit enough"!
Skywriting
has once again reinforced several elements of the misuse of the phrase and has conflated the evils of Social Darwinism with a biological theory which he does not understand. (Please don't do that. Far too many participants on this forum are already seriously ill-informed on even the basics of the theory of evolution.)
Especially cringe-worthy is the following sentence, which may possibly set a record for the highest concentration of regrettable fallacies in such a small space:
"Then Jesus walked-the-talk by healing misfits and the diseased, sealing forever the false idea that the strong or fit had any real advantage in this world or were God's chosen people or that natural selection was part of God's plan."
[Sigh]
Moreover, those of us who affirm the scriptures and consider God to be the Ultimate Designer (not in the very flawed and well-debunked Michael Behe ID sense but in a grander, Divine Sovereignty sense) hasten to point out what God has made abundantly clear in his Creation, by means of something we commonly call "evidence":
...that natural selection indeed was and is part of God's plan!
Indeed, as with all of God's amazing Creation in general, praise God for the wonders of his evolutionary processes.