Not that you will listen, but the point of much of Leviticus from which that bit is taken [and it is the ONLY reference seemingly condemning homosexuality in the ENTIRE bible] is all about the Holiness Code, and the importance of ritual purity for ancient Israelites, sacrificial laws for example. Some theologists have said that a word for word translation from the original Hebrew makes the sentence this: "And with a male thou shalt not lie down in beds of a woman; it is an abomination. That is, "...
So it could be a directive for any homosexual acts to respect one's wife and take place outside the marriage bed. Many rules of ancient Hebrews were about keeping things separate, not mixing things, cloth could not be made of mixed materials, for example, crops could not be mixed.
Anyway, even if it does condemn homosexuality, all the rules in Leviticus are designed to separate the Israelites from the Canaanites who were seen as promiscuous shell fish eaters [amongst other things] Other laws in Leviticus include prohibiting the disabled from being priests,oh yes, and those with damaged testicles couldn't be priests either. And blasphemers being stoned to death. It is clearly nonsense to take that one passage and use it as evidence that because of it if you are a Christian you have to believe that homosexuality is wrong.
And lastly, Christ himself did not say homosexuality was wrong once. NOT ONE TIME. Quite important.
[falls on stony ground amongst atheists and christians alike]