that may be true but there are way for family to allow incest if the law allow but people only think of the bad so it unlikely law will be change first off Sperm bank because family member may fall in love dont mean they will have a kid together or they can't have a kid at all since sperm bank got many healthy people dna to chose from and if the law say something like god say it a sin that not true tell me if god only make two human how many time incest use to make all of us. i thought about learning how to heal gene but all my answer to it need more info like cloning and mixing human and other life form to see the dna info because so far what i can find on the internet is so little and when i say mixing life form they dont need to have a kid only change some of there dna learn more about what wall in our dna and speed up the human adapt to sick, heat, and aging. sorry sometime my mind think of too much but my point is incest is ok as long the baby dna is ok that mean why do it need to illegal they can change to giving birth to incest wrong and as people who in-love with one of there family member allow to date but use sperm bank to have a kid or kids and sperm can help a people pick the sperm that will increase the kid dna making the kid more likely to be born safely into this world without worry
and yes i know incest mean sex with a family pull out take pill safe sex