By now many have heard of or seen directly the advertisement running in Australia in an effort to increase support for the concept of homosexual “marriage.” If not, here’s the add, from YouTube:
If you didn’t want to watch it, here’s a summary of the essentials. A young couple–a man and a woman with child (notice, pro-abortionists: we still say “with child”; but that’s another blog post)–is visiting their doctor for an ultrasound and listening to the baby’s heartbeat. The doctor asks if they want to know what they are having. They agree that they do, and the doctor tells them, “You’re having a lesbian.” The couple is delighted, and words appear on the screen saying, “Any child can be born gay. So marriage equality is every family’s issue.”
A number of points could be made about this, and surely many are out there making those points. The most common point made is that it has not been scientifically established that people are born with their sexual preferences locked in. Not at all.
However, I’d like to step around that for the moment and address a point that sometimes seems to go unsaid: that the argument underlying the “Homosexuals are born that way so homosexuality must be a morally acceptable choice” propaganda is false from the get go. And looking at why gives us a chance to play with logical structures. And, I admit: that’s the real reason I am bringing this up anyway. 🙂
The argument can be structured in Modus Ponens form:
(1) If homosexual tendencies are genetically determined, then homosexuality must be considered a morally acceptable lifestyle choice.
(2) Homosexual tendencies are genetically determined.
(3) Therefore, homosexuality must be considered a morally acceptable lifestyle choice.
[And, I should note that “genetically determined” is a specific filler for what could be a number of “nature versus nurture” possibilities, such as “determined by inherent brain structures,” etc.]
We have to note that the logical structure is valid, meaning that if premise (1) is true and premise (2) is true, then the conclusion in (3) must be accepted as unavoidably true, also. Therefore, understanding whether the conclusion is true requires us to visit the premises, themselves, to see if they are true. If they are not, then the conclusion cannot be said to be true.
Normally, I see defenders of marriage attacking premise (2), the idea that homosexual tendencies are genetically determined. And I can understand why, since it is taken as a given by an increasing number of people (as illustrated in the Australian ad) even though it has not been established as true at all.
However, I’d like to fill in the gap by pointing out that premise (1) is not true. That is, it is not true to say, “If homosexual tendencies are genetically determined, then homosexuality must be considered a morally acceptable lifestyle choice.”
Of course, according to the Bible it is immediately seen as not true. Outside of liberal thelogians looking to recraft God and Jesus Christ in their own image, this is generally well understood. (Rather than go on at length about this, I happily point folks to the Tomorrow’s World website, where they can search the topic “homosexuality” and read what comes up. Plain truth, folks.) But for someone who hesitates to take the Bible at its word, can it still be shown to be false? Indeed.
Consider substituting “homosexuality” with other conditions that have even stronger ties according to some studies to genetic predisposition. I have read of studies that demonstrate individuals with tendencies toward violence can have genetic predispositions and that some alcoholics can have can have genetic predispositions toward alcohol abuse. Again, these studies–if I recall correctly–show even stronger evidence of a cause and effect relationship. (Which would bring an element of a fortiori.) So consider these statements:
- If alcoholic tendencies are genetically determined, then alcoholism must be considered a morally acceptable lifestyle choice.
- If violent tendencies are genetically determined, then violence must be considered a morally acceptable lifestyle choice.
I don’t know anyone who would rationally agree with either of those statements, and, certainly, more could be made. (E.g., Here’s a paper discussing genetic predisposition to drug abuse.) The point is that, no, premise (1) is not acceptable: Even if it were found to be true that homosexual tendencies were genetically determined (again, something not yet achieved, by the way), then it would not follow that homosexuality must be considered a morally acceptable lifestyle choice–not in any way, shape, or form. Genetic predispositions (or other such nature over nurture considerations) make for horrible determiners concerning moral acceptability. Consequently, whether premise (2) is true or not, the conclusion still does not follow as true.
And, frankly, the only reason we are living in a world in which the content of our genes is considered to be viable ground for deciding issues of morality is because we are losing our connection with the only solid source in existence of any absolute morality: An eternal God and Creator.
Gotta love logic. Don’t leave home–or watch TV in Australia–without it.