Many conservative Christian authors who have written on homosexuality
maintain that sexual orientation is not determined by one's genes. Rather,
it is a chosen behavior that is largely determined by the person's
childhood experiences. This belief seems to be based on theological
influences:
Religious conservatives generally regard God as
playing a very intrusive role in micromanaging every person's life, from conception to
death. They believe that God
is present at conception and influences the genetic makeup of the
pre-embryo. They also believe that God hates homosexual behavior and
considers it an abomination. Thus, to them, it makes no sense that God
would intentionally create a genetic structure in the pre-embryo that
will be likely to make that person mature as a homosexual. This belief leads
some of them to reject genes as a cause of homosexual orientation. On
the other hand, they believe that human beings have free will. They can
chose to commit moral or immoral acts. Some choose the immoral lifestyle
of homosexuality.
A second theological consideration is contained in the biblical
verses 1 Corinthians 6:9-11 which is one of the main passages quoted by
religious conservatives to show God's rejection of homosexuality. The
passage reads:
"Know ye not that the unrighteous shall not inherit the kingdom of
God? Be not deceived: neither fornicators, nor idolaters, nor adulterers,
nor effeminate, nor abusers of themselves with mankind, Nor thieves, nor
covetous, nor drunkards, nor revilers, nor extortioners, shall inherit the
kingdom of God. And such were some of you: but ye are washed, but ye are
sanctified, but ye are justified in the name of the Lord Jesus, and by the
Spirit of our God." (KJV) 1
Many conservative Christians believe that sexually active homosexuals will not achieve
heaven after death. However, if they are saved by
accepting Jesus as Lord and Savior during their lifetime on earth, then God
will change their sexual orientation so that they become heterosexuals, and
will later admit them to heaven. David Griffiths,
for example writes: "...homosexuals can be saved through faith in
Christ and can know deliverance like other sinners.." 2 They reason that being able to change one's sexual orientation would
seem to imply that there is no genetic component to homosexuality; it is
caused by one's experience, one's environment.
There is a near consensus among human sexuality researchers and mental health professionals that
sexual orientation is not a matter of choice, that it is not changeable, and that it has a strong genetic cause.
Religious conservatives often point to studies of identical twins who were separated at birth
and raised independently. If one is gay, then the other twin is found to be gay about
55% of the time. They reason that: since identical twins have the same genetic structure,
then if homosexual orientation were determined by genes, 100% of the other twins would be
gay. Thus they conclude that homosexual orientation is not genetic. This belief
appears to be based on a misunderstanding of the
roles of genes.