Dont agree with it but..
That's actually not fully correct because Leviticus is in the Old Testament. When Jesus died on the cross he took on the sins that were on humanity because of Adam and Eve. So what's in the New Testament overwrites the old laws. That's why Christians don't have to follow the wacky **** like avoiding mixing fabrics. The pieces usually put out to show that god deemed marriage to be between in a man in the woman are Jesus's responses about marriage because he always refers to it as a bond between men and women or some ****.

TL;DR you picked the wrong passage.