Leviticus is Torah, Old Testament. It is for Hebrews, Jews. It has nothing to do with Christians, and Christians have nothing to do with it as they routinely disregard the Old Testament.
Christians aren't even Christians for that matter, they are anti-christ followers of the Antichrist Saul/Paul, killer of those of the faith and corruptor of the Word. Brilliant guy: If you can't beat them, make them join you. He tried killing as many Christians as he could, but killing them all was something that he could not do. So he took their faith, and twisted it to suit his Roman goals. You know the rest. Peter, James - Jesus is his own brother - gone, finished, rendered irrelevant. The actual and true followers of Jesus didn't even make it past a generation.
But you do bring up a good point - yes, look up Leviticus 18:22.
What does it say? It says man should not lay with male as he does with woman...
Note that it doesn't say man should not lay with man, it says man should not lay with male. The significance of that? A man is an adult, an adult male. A male is not yet a man. So the prohibition is actually that an adult man should not lay with a male who is not yet an adult.
Wait, there's more - that itself might not be a precise translation, as some have translated to mean that man should not lay with a male of his own family, meaning an adult man should not lay with a young male that is related to him.
It's ironic how many Christians refer to little Leviticus 18:22 yet have never read it, let alone bothered to understand it. The only part of the Bible they also refer to as Genesis, and it is clear that they've never bothered reading that either.