>>54679888The normalization of incest is a natural progression of the Western liberalisation of sexuality. Our current incest taboo comes from one major source and one lesser source.
The major problem with incest is that children born from such a union are at much great risk of genetic disorders and disabilities. But 'risk' is not sufficient reason to ban something. Women who have children over the age of 30 are also at much greater risk of giving birth to disabled children but they are still allowed to do so. People who are 100% guaranteed to pass on genetic disabilities (such as deafness or dwarfism) are also allowed to to procreate.
Unless you are willing to ban all procreation likely to create children with genetic disorders you can not keep incest illegal for this reason.
The lessor problem with incest is that it is a social taboo. People do not consider incestuous relationships normal and find them disgusting. This is also not sufficient reason to ban something. The recent normalization of LGB relationships is based on informed consent, as long as two adults consent to a sexual act then they have the right to be together and no one has the right to stop them, even if they do not consider their relationship normal.
Unless you are willing to ban all non traditional sexual relationships you can not keep incest illegal for this reason.
So the current ban on incest is completely at odds with the way that the Western liberal legal and social system views sexuality. I think the Western world will legalize incest in the next 20 years.