Just think what Lev 18:22 does for you if you're a normal, typical, boring person. You start to feel that God loves you the best! If you want to dominate your wife, all the better! God loves it!
But Levitical law is not easy to work through. A 2015 scholarly paper suggests the ban on eating pigs is not at all because of any imagined health benefits, etc., which was the typical Christian guess. To follow all the connections, it's likely because pigs give birth in litters. There is no firstborn male.