Callista wrote:
puddingmouse wrote:
Callista wrote:
But eugenic abortion is totally unethical.
I'll say it again: why?
I'm not agreeing or disagreeing. I just want to know the reasoning. Would it still be unethical if the prenatal tests were 100% accurate?
It wouldn't even be scientific. Eugenics is not based on sound scientific reasoning.
The idea that "the survival of the fittest" drives evolution is actually a popular fallacy. Trying to have only the strongest survive is a very bad idea because it eliminates genetic diversity in a species--and it's genetic diversity that allows a species to survive changing environments.
Natural selection is not the survival of the strongest. It's the survival of those who fit into their environments. And the one thing that humans are best at is adapting to novel environments. You simply can't make a species better by making it less diverse.
And let's look at the ethical angle. What does it imply, if you deliberately select some lives as worth living, and others not? You create a hierarchy of human life. You state that some people are more valuable, more worthy, than others--intrinsically. That's a dangerous judgment to make. A society that allows itself to make that sort of a judgment is a society where individual rights start to degrade, because once you say that some lives are worth living and others are not, you cannot avoid coming to the conclusion that some people are more valuable than others. If you base the value of a human life on anything other than the fact that it is a human life, you are logically forced to tie the value of human life to the ability of the individual. Applied consistently to all human beings, that idea would force you to conclude that humans are not equally valuable after all.
I understand what you are saying as regards genetic diversity, but humans are less at the mercy of their environment to evolve. We've got to the point where we now change the environment to suit us, rather than adapting. I realise that there are limitations to this; climate change, running out of resources and overpopulation will force us to adapt eventually.
However, when humans were more at the mercy of their environment - we practised a form of 'eugenics' in the form of infanticide and exposure of infants. When resources are limited and you have social species, like humans, this is common. It happens in the animal kingdom. On Nature's amoral terms, the more 'valuable' individuals are the ones that survive. Some people cannot survive without huge support from others. I know ALL humans need each other to survive, but some people really are, I hate to say it, burdens. It sounds harsh, but if you think about it objectively, can you see what I mean? I'm not saying I like this state of affairs, but Nature is what it is. So, whilst you need genetic diversity in order to adapt, not all genetic mutations are valuable. We realised this in our primitive state and we still realise this today - however, because we've mastered our environment better, we don't need to practice eugenics.
As a person, I agree with your reasoning, fwiw.
However, there are some very debilitating genetic illnesses out there (it was a morbid special interest of mine for a while). So much so, that babies born with them are not long for this world... or if they survive a few years, it can be involve intense pain. Obviously, these are very rare - but if prenatal testing was 100% accurate, I don't personally see anything unethical about terminating these pregnancies. I don't think we will ever agree on this.
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Zombies, zombies will tear us apart...again.
Last edited by puddingmouse on 05 Jan 2012, 6:04 pm, edited 4 times in total.