Tecum skrev 2023-01-31 16:30:05 följande:
Det är väl bra, sen återstår att kontrollera efterlevnaden. Det blir inte lika enkelt...
Men varför förbjuda kusingifte? Det var tillåtet långt innan invandringsproblemet uppstod och har väl aldrig skadat någon?
Med frånvaro av en central stark statsbildning är det av största vikt att hålla det enskilda mindre samhällets resurser samlade och inte sprida ut dem över andra samhällsbildningar - om resurserna försvinner genom att de delas med utomstående så förvagas samhället tillgpng till resurser och makt över resurserna. Det syns i klansamhällen - som kännetecknas av just frånvaro av en stark central stat, det syns i feodala samhällen och bland europas kungahus. Du känner kanske också igen resonemanget från de främlingsfientliga partierna som är livrädda för att 'de andra' ska få ta del av landets resurser. Klanmentalitet ,eller?
Kusinäktenskap eller i alla fall en lång rad av kusiner som får gemensamma barn har visat sig vara skadligt...
Visserligen sägs det baserat på genetisk grund att barnaalstrande av kusiner förstärker såväl positiva genetiska som negativa genetiska egenskaper. Tyvärr är de negativa konsekvenserna mer förödande än ev positiva konsekvenser är gynnande.
Habsburgs kungahus och andra kungahus är ett av fler exempel.
blog.23andme.com/articles/inbreeding-doomed-habsburg
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Habsburg InbreedingBy the end of the 17th century, the results of their marital practices had become apparent in the form of a distinctive protruding lip, a high rate of infant mortality and a host of other health problems.
Could the same marital practices that helped bring the Habsburg dynasty to power also have led to its demise?
In the April 15 issue of PLoS One, scientists from Spain’s University of Santiago de Compostela argue that inbreeding so incapacitated the Habsburgs over the centuries that by the death of King Charles II of Spain in 1700, they were virtually unable to reproduce.
From 1516 to 1700, it has been estimated that over 80% of marriages within the Spanish branch of the Habsburg dynasty were consanguineous; that is, they were marriages between close blood relatives. Most often, these unions took the form of marriages between first cousins, double-first cousins, and uncles/nieces. Conceivably as a direct result of these marriages between relatives, infant and child mortality rose to 50% among Spanish Habsburgs, much higher than the average for the period."
en.wikipedia.org/wiki/Charles_II_of_Spain
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Born on 6 November 1661, Charles was the only surviving son of 26-year-old Mariana of Austria (1634–1696) and her uncle, 56-year-old Philip IV of Spain (1605–1665). While European nobility commonly married within the same extended family to retain property, the Spanish and Austrian Habsburgs were unusual in the extent to which they followed this policy. Of eleven marriages contracted by Spanish monarchs between 1450 and 1661, the vast majority contained some element of consanguinity, while Philip and Mariana were one of two unions between uncle and niece.[4][a] One suggestion is this policy may have been partially driven by Spanish Limpieza de sangre or "blood purity" statutes enacted in the early 16th century and which remained in use until the 1860s.[5]
Inter-marriage accentuated the so-called '
Habsburg jaw', a physical characteristic common to both Spanish and Austrian Habsburgs; a contemporary reported this was so pronounced in Charles that he swallowed his food without thoroughly chewing, which resulted in frequent stomach problems.
[6] A study conducted in 2019 on the Habsburg jaw concluded a genetic link was highly likely, specifically as a
recessive trait; however, this is based on an analysis of portraits and in the absence of genetic material such claims remain speculative.
[7]Historians Will and Ariel Durant famously described Charles as "short, lame, epileptic, senile and completely bald before 35, always on the verge of death but repeatedly baffling Christendom by continuing to live."[8] The degree to which inbreeding was responsible for his ill-health is unclear and disputed; his elder sister, Margaret Theresa of Spain, did not have the same problems, nor did the daughter from her marriage to her uncle Leopold. Based on an analysis of contemporary accounts, Charles may have had combined pituitary hormone deficiency and distal renal tubular acidosis.[9] One suggestion is his health problems derived from a herpetic infection shortly after birth, while his autopsy report indicates hydrocephalus.[10]"
