An example of moral consciousness was used. Survival of the fittest seems to explain human selfishness well enough, but what about the sense of guilt we feel when we fail to help another. How can Darwinism explain a strong desire to help others or the feeling of guilt if we fail to be charitable? The answer I was given was that since humans live in communities, we evolved an instinct to take care of others in our tribe which increases the chance of our own survival. Seems natural selection conveniently explains both selfishness and self-giving in one fell swoop.
In yet another discussion on another not-so-catholic-friendly forum, the topic of homosexuality came up in terms of evolution. The conversation was sparked by me comparing homosexuality to a “deviation”. This was not a moral dialog about good vs. evil or right vs. wrong, but about facts vs. design. I work with teams of engineers and technicians and whenever a product/system concern comes up we ask a question; “Is there a deviation?” We understand the design and its natural process variation; therefore we understand when an observed variation is normal or abnormal to the design. If abnormal, we call it a deviation or non-conformance or just “a problem”.
If we observe the design of the human body in terms of sexuality and then we note the facts about homosexual sex (without going into too much detail), we can say that it is abnormal to the design or a “deviation”. It would not matter if one believes we were designed by almighty God or by almighty evolution. Homosexual sex is deviant to the design, just like any number of sexual acts that won’t be listed here (see CCC paragraph 2357). The same goes for infertility or impotency. They too can be called deviations or non-conformities without any discussion about morality or the intrinsic value of the person involved.
As you might imagine this was met with disdain. Suddenly people became “spiritual” about human sexuality, saying that we cannot reduce ourselves to a mere physical design like some kind of biological machine. We are sexual beings, and who is anybody to say what is “normal” or “abnormal”. There are only opinions; facts are unrelated or can be explained away, unless of course, the facts support a certain agenda.
Leaving observable facts & observable design aside, how can evolution explain homosexuality in terms of a species surviving and reproducing? I was given a clear answer. Having a certain homosexual percentage in the population prevents overbreeding, and thus helps the species as a whole. So there you have it and it’s certainly difficult to argue with such a firm wave of the evolutionary magic wand, not to mention the magic wand of sexual relativism.
All clear now?