Here is my argument: There is not conclusive proof that there is a biological basis for homosexuality in humans. I think using Scripture to attempt to prove there is no biological basis for homosexuality is an ignorant argument and the height of homophobia. Why are you trying so hard to prove homosexuals don't exist? Does their existence make you uncomfortable?
Another argument: Romans 1:16-32
Besides, if you're going to argue from Scripture, then argue from Scripture. Don't just post Scripture and expect me to interpret it the same way you do. Such a practice has caused 30,000 Protestant denominations.
"using Scripture to attempt to prove there is no biological basis for homosexuality is an ignorant argument"
The Othodox Study Bible-New Testament and Psalms states that homosexuality is unnatural, shameful, and unacceptable to God.
Orthodox Study Bible- New Testament and Psalms (Romans 1: 26-32 pages 339-340)
26 For this reason God gave them up to vile passions. For even their women exchanged the natural use for what is against nature.
27 Likewise also the men, leaving the natural use of the woman, burned in their lust for one another, men with men committing what is shameful, and receiving in themselves the penalty of their error which was due.
28 And even as they did not like to retain God in their knowledge, God gave them over to a debased mind to do those things which are not fitting;
29 being filled with all unrighteousness, sexual immorality, wickedness, covetousness, maliciousness; full of envy, murder, strife, deceit, evil-mindedness; they are whisperers,
30 backbiters, haters of God, violent, proud, boasters, inventors of evil things, disobedient to parents,
31 undiscerning, untrustworthy, unloving, unforgiving, unmerciful;
32 who, knowing the righteous judgment of God, that those who practice such things are deserving of death, not only do the same but also approve of those who practice them.
Romans 1:26, 27 Error means delusion. Paul, and the rest of Scripture, is clear. To claim that homosexuality is natural or an “alternative life-style” is delusion. Rather, it is unnatural, shameful, and unacceptable to God.
Romans 1:29 Sex, of course, is not evil, for it is a gift of God. But sex outside of marriage is immoral, for it violates God’s law.
Romans 1:32 God will also judge those who approve of unrighteousness.
All humanity (even the ungodly) knows God’s righteousness through creation (v. 20) and conscience (2:14,15). While those who excuse themselves may form an unrighteous brotherhood with the vices, all will know they are deserving of death at the final judgment.