I think you are going to run into a lot of opposition from many Christians who rely on the traditional understanding of Genesis 19:5 and totally ignore what Ezekiel 16 teaches. I have discussed Genesis 19:5 on many threads on many Christian message boards and run into prejudice and bias especially from those who claim to believe in the inerrance of Scripture.
You don't need to refer to extra-Biblical sources to understand Genesis 19:5; all you need is to understand the Bible explains the Bible. God destroyed 3 other cities along with Sodom; so if homosexuality was the reason why Sodom was destroyed then why destroy the other 3?
As to your Wikipedia article I must take exception to their understanding of "yadha". "Yadha" can mean "sexual intercourse" and does have this meaning in Genesis 19:5 or Lot's offer of his daughters to appease the mob make no sense.
One other comment on your quotes; they must be linked to if taken off the Internet or a properly footnoted or you have placed this message board in violation of copyright laws.