(Adapted almost wholesale from John C Wrights blog)
...A friend argues that all religious belief and non
belief could be explained and had to be explained through genetics. He
stated that some people just had that religious inkling ingrained in
them purely through genetics and others did not.
Any glaring or subtle flaws can be found in his process of reasoning?
Ironically, in asking his question this points out
the very flaws in the argument that genetic predispositions, not
facts, evidence, experience or reasoning, explains why men come to the
conclusions they reach.
Listed in order logical links involved. The genetic fallacy is a specific type of ad hominem,
where an assertion is made that a man’s origins, genes, astrological
influences, upbringing, culture determine his conclusions and therefore
the conclusion may be dismissed without being addressed.
All postmodern, leftwing... logic is an attempt to evade,
elude, flee and cower from any arguments without addressing any points
actually raised.
The utility of the genetic fallacy is that it makes no sense
whatsoever, hence it can be used for all circumstances. One can say,
‘You are a man, and men commit most violent crimes, and therefore cannot
be objective about the question of capital punishment’ with just as
much ease one can say, ‘you are a women, and women commit few violent
crimes, and therefore you cannot be objective about the question of
capital punishment.’ It does not matter what term is substituted for
‘man’ or ‘woman’ or what topic is substituted for ‘capital punishment.’
In this case, there is just as much evidence, namely zero, and it
would be just as irrelevant if any evidence did exist, which it does
not, to say that theism is explained by genetics as to say belief in
capital punishment is explained by genetics.
Here are the problems.
1) First, if your friend has a genetic predisposition to disbelieve in
God, then his disbelief is not based on reality, not based on evidence,
it is merely a chemical in his bloodstream effecting his thought. By
that logic, no evidence on this topic or any other is trustworthy.
He saws off the branch on which he is sitting. If beliefs are
genetic, no belief is based on evidence, not even the belief that
beliefs are genetic. If your friend truly believed beliefs were
genetic, he would never argue about it. You cannot argue a man into
changing his genes.
2) Second, believers lose their faith and atheists convert every day of
every week of the year. Hence, the genetic predisposition for faith
does not actually control anything.
This is a classic example of a simple logical fallacy of
irrelevance. If you say the sunrise causes the rooster crow, or you say
the rooster crow causes the sunrise, both arguments are made nonsense
once you see sunrises without roosters calls and hear rooster calls
without sunsets.
3) Third, Darwinian evolution presupposes that there is a variation with
the species, and that the trait is carried on genetically. In this
case, there is no variation: there is no race of man that lacks
religious belief.
And, if the most successful race of man is the one with the religious
belief, then Darwinian logic says your friend is lowering his survival
chances and the survival chance of his posterity by embracing any
other belief. If belief in God is a genetic survival trait, disbelief
is anti-survival.
4) Fourth, if belief were genetic, then whatever race of man had the
trait, let us say the Jews, would be entirely immune to religious
belief, and another race, let us say the Chinese, would be entirely
vulnerable to religious belief. Does this fit any observed facts?
Likewise, if belief were genetic, it should run in certain families
and be absent in others. Does this match with even a casual observation
of the world around him?
5) Fifth, you can tell him that the belief that Darwinian genetics can
explain human thought is a belief caused by a defective gene he
inherited from his ancestor, like colorblindness.
Tell him that, due to an unfortunate combination of genes, he is
unable to perceive the spiritual reality and moral reality all healthy
minded humans from the dawn of time have felt. Ask him to propose an argument against this position. Then, whatever
argument he uses, adopt it yourself to show that belief in God is not
genetic.
6) Sixth, ask him whether or not real scientific theories can be
disproved? For example, Relativity would be disproved if light was
measured to travel at different speeds based on the speed of the
observer. Newton would be disproved if two objects dropping in a vacuum
were pulled by gravity at different rates of acceleration. Whereas a
witchdoctor who does a rain dance, when the rain does not come, merely
assumes that more dancing in a better spirit is needed, and he keeps
dancing until eventually it rains. His theory of causes and effects
cannot be disproved, hence it is witchdoctory, not science.
Ask your friend to provide you with an experiment or observation that
would disprove his theory of the genetic basis of religious belief.
7) Seventh, if religion were proved to have a genetic basis, it has no
bearing on whether the issue is true or false. Colorbindness is
genetic. Just because some people can see colors and others cannot does
not mean that all visible light is of the same wavelength. The genes
controlling the function of the eye do not make light exist or cease to
exist. Likewise, here. If some people are genetically predisposed to
see ghosts, or see whales, it does not mean that one is real and the
other is not real. There is no logical connection between the
assumption and the conclusion at all.
8) Eighth, if the genetic predisposition for religion did exist, how
would it be different from, for example, a genetic predisposition for a
skill at math, or an ear for music? Some people think more clearly
than others about metaphysical matters, and some people are better at
math or composing operas than others. Sometimes musical skill seems to
run in a family, like the Bach family. Other times it does not. Again,
even if it were proved that an ability to perceive spiritual reality
were genetic, it would say nothing about the reality of what was being
perceived. It would not prove the perception were accurate, nor would
it prove the perception were inaccurate.
9) Ninth, ask him how precisely his belief that some men are prone to
religion due to genetics differs from the belief in astrology? I have
heard that Libras are all religious, due to being born in October. Is
there even one observation or experiment your friend can name which
makes his theory more sound than the theory of an astrologer?
See original at http://www.scifiwright.com/2016/07/the-genetic-fallacy/