Homosexuality is a nineteenth century invention. The notion of homosexuality is itself is nowhere in the Bible.
We can, however, blame the churches for adopting the notion that homosexuality is a disease.
		
		
	 
Sorry, Harke, homosexuality is more than a "notion" in the Bible.  It's called out specifically, both in Leviticus and in the Corinthians passage Midnight 77 quotes.  (To JackFT, Midnight's quoting the New International Version, which now outranks even the King James Version as the authoritative translation of the original texts.)  
And as for homosexuality being a 19th-century invention, I'm sure that would surprise the Greeks and Romans and virtually every other ancient culture where it was prominently practiced.  One of those places was Corinth, the most cosmopolitan city in ancient Greece.  The majority of its people were extremely wealthy and well-educated and they spent much of their time in temples, worshiping gods they credited for their good fortune.
Corinthian worship was all-consuming, more than any other style of Greek religion.  Among its temples' staffs were high-priced prostitutes of both genders whom worshipers consorted with as divine surrogates.  The role-play was very elaborate, often involving drag and subordination.  When Paul lists the "wicked" characters who "will not inherit the kingdom," he's describing the sorts of Corinthians who indulged in the local style of pagan worship.  If you were a Christian in Corinth and read that, you'd immediately get his message: these rituals, those who practice them, and the values they drive are not compatible with our beliefs or style of worship.
Today's intolerant Christians read it out of this context and lean on it to excuse their homophobia.  But, as this is the most explicit reference to homosexuality, they pick up the adjective ("homosexual") and drop the noun ("offenders").  This cancels out Paul's meaning.  He doesn't say "homosexuality" is wicked; it's only those who "offend" in same-sex idolatry that he singles out.
To the thread's original question: in the Western world, it's a safe assumption that most gay people begin life at least as Christians.  It's also a safe assumption that most of them grow up in a RELIGION that ignorantly bases its judgment of gay people as sinners on misunderstood scriptures like this one stripped of their context.  As a result, they come to hate the haters who label and condemn them.  And, consequently they make an equal mistake: they judge Christianity out of context.  They lose their faith because they've been wounded by religion.  This seems tragic to me.
I am a gay Christian, whether other Christians believe or not, like it or not.  And I'd defy any of them, from the Pope on down, to tell me otherwise IF I thought their opinion of my right to believe in Christ mattered.  But what they think is irrelevant.  More than that, it's un-Christian of them to do so.  If they can't see this, they can all go to Hell.  (But, of course, I pray they get over their prejudices and avoid that.)