Exactly fone. Taboo for no real reason. The genetic probability of birth defect in people are 2-3% … in 1st cousins its 4-6% or the same as a 40 year old woman having a child. So by the logic that we should ban 1st cousin marriages based on increased birth defects we should also ban women over the age of 40 from child bearing.
Albert Einstein married his first cousin as well as Charles Darwin. Teddy Roosevelt and Eleanor were 4th cousins and shared the same last name.
An increase in birth defect probability does increase if offspring of 1st cousins procreate with their first cousin. The probability decreases with 2nd cousins couples and so on.
I bring this up b/c a friend of mine confided in me about their parents being cousins. They’ve been living in shame and fear about this. I dispelled the myth and made them feel better about themselves. People who discriminate over this sort of thing simply don’t know the facts.
Many first cousin marriage laws were put into effect before knowledge of genetics.
First cousin marriage is legal in all of Europe, Canada, Mexico.
Consanguine/consanguinity- related by blood, relationship by blood.
1 in 1000 couples in the US are 1st cousins/ 4 in 1000 in Japan.
Among rich land owners cousin marriage was a way to keep the wealth and land in the family. In rural areas the cousin was the first available line in looking for a spouse. We are all basically descended from cousins. Incest is where the real taboo should lie and for good reason… incest defined as brother/sister and relation w/ parents and grandparents, defects and hereditary disease increases quite a bit in such relations… I can’t pull facts on this but I don’t think thats needed.
I just find it curious that in this day and age we are more likely to think and feel a man sticking his penis in another man’s ass is more acceptable then cousin marriage.