If you are going to go down that path then you have to ask what is the Bible. I mean, you could say that the "original Bible" is the Code of Hammurabi from 1754

If you are going to go down that path then you have to ask what is the Bible. I mean, you could say that the "original Bible" is the Code of Hammurabi from 1754 BC and say that the "original Bible" doesn't mention Homosexuality. But as you say, the Hebrew bible has pretty much remained untouched for 2000 years. We can go back about 400 years earlier if we include the Dead Sea scrolls. While there are some differences, so much is the same that there is no reason to assume that Homosexuality was added in at that point. I find it hard to believe that זכר meant anything other than male back when the Bible was written. זכר is use when referring to how people were made (Man and Woman were created), זכר is used when telling Noah what animals to bring on the ark (two by two came to Noah, to the ark, male and female), and when talking about what animals to sacrifice.