Not true. Since imperfection you are born that way. God did not create humans imperfect. They became imperfect after adam and eve screwed up. They were perfect before. Thus, all of us are unnatural. Don't ask me how these defects came about, but God didn't make them.
So what you're saying is "unnatural use" could mean anything? Because we are ALL unnatural? So, unnatural use of a man could mean "before marriage" or it could mean "using him as a table." It could mean anything. You have absolutely no idea. You DECIDE that it means "sexual pleasure" because that serves your purpose.
And grakthis, what's your opinion on this scripture:
1 Corinthians 6:9 What! Do YOU not know that unrighteous persons will not inherit God’s kingdom? Do not be misled. Neither fornicators, nor idolaters, nor adulterers, nor men kept for unnatural purposes, nor men who lie with men, 10 nor thieves,...
Blatant mistranslation.
"The Greek words suggest not "homosexual" but "effeminate" or "morally weak or soft" or "cowardly."
"In summary, despite common interpretations of the words "malakoi" and "aresenokoitai" in modern times, there is no clear evidence which links them unquestionably to homosexuality in itself. Instead, in every case in which they are used, there is an implied connection with either prostitution or child molestation. Modern research shows us, however, that such connections are fallacious. There is no research which clearly demonstrates that there is any correlation between homosexuality and the "sins" referenced alongside it in Corinthians and Timothy. "
"The meaning of these texts, said to exclude homosexual people from the Kingdom of God, hinges on the meaning of two Greek Terms, `malakoi' and `arsenokotai.' Throughout history these terms have been translated variably (masturbatory, practicers of heterosexual anal sex, sodomites, catamites and the like). Suggested translations today still vary (morally loose, masturbators who waste their property, boys and their pederast partners, temple prostitutes serving men and women, gold-digging gay hustlers who pursue the elderly). No one really knows what these terms mean. There is no good reason to suppose they apply to consensual, respectful, homosexual acts per se, especially since such an interpretation would be in conflict with all the rest of the Bible."
http://www.otkenyer.hu/halsall/lgbh-cortim.html