>>683625its not "some", nearly every single culture in the world sees incest as taboo and those who aren't are located in marginal tribal communities. their main tangible reasoning is that familial structures should be constructed on platonic nurturing instead of intimacy, which stunts that bond. its been empirically shown that incestuous relationships are less stable in the long-term and thats been the case throughout distilled observations from dozens of millions of people before us throughout history. in marxist analysis, incest has been seen in forms of affluence such as the 19th century english bourgeoisie where incest formed strategic alliances to preserve economic/social power and property. i digress though, with the recent gooning epidemic and the popularization of incest porn its going to inevitably be normalized and i myself wouldn't have minded if i had a hot mom to ease my urges back when i was a wee lad