According to SCIENCE, humans are only degraded.
Here again is all the EVIDENCE medical science has on the human condition. All of the rest is speculative nonsense from people of faith.
The reason for the term "inbreeding" is from the fact that humans are so full of diseases now. If you mate with your any close relative, especially a sibling, you are only doubling the diseases you carry in the child you may have. It is guaranteed that the child will suffer.
Inbreeding did not exist when we were not so degraded.
Now, you can marry someone who is NOT related to you by thousands of separations (your thousandth cousin) and still produce multiple genetic diseases. Every human on earth has more than one genetic deformities, health losses and diseases. This is because there are some 17000 genetic diseases and the "luck of finding a mate far away from your family" is over. You may have to go to the other side of the earth to see if you can find someone to breed with, to have less diseases in your offspring. Even so, you will still have genetic diseases in your offspring. We are ALL INBRED with these diseases.
This is why Jehovah told us to never have sex with a close relative.
20 “‘Cursed is the one who lies down with his father’s wife, for he has dishonored his father.’ (And all the people will say, ‘Amen!’)
6 “‘No man among you should approach any of his close relatives to have sexual relations.*+ I am Jehovah. 7 You must not have sexual relations with your father, and you must not have sexual relations with your mother. She is your mother, and you must not have sexual relations with her.
8 “‘You must not have sexual relations with your father’s wife.+ It is exposing your father to shame.*
9 “‘You must not have sexual relations with your sister, either the daughter of your father or the daughter of your mother, whether she is born in the same household or born outside of it.+
10 “‘You must not have sexual relations with the daughter of your son or the daughter of your daughter, because they are your own nakedness.
11 “‘You must not have sexual relations with the daughter of your father’s wife, the offspring of your father, because she is your sister.
12 “‘You must not have sexual relations with your father’s sister. She is your father’s blood relative.+
13 “‘You must not have sexual relations with your mother’s sister, because she is your mother’s blood relative.
14 “‘You must not expose your father’s brother to shame* by having sexual relations with his wife. She is your aunt.+
15 “‘You must not have sexual relations with your daughter-in-law.+ She is your son’s wife, and you must not have relations with her.
16 “‘You must not have sexual relations with your brother’s wife,+ because it is exposing your brother to shame.*
17 “‘You must not have sexual relations with a woman and her daughter.+ You must not take the daughter of her son and the daughter of her daughter in order to have relations. They are her close relatives; it is an obscene act.*
The real meaning of this is to tell you how to have clean reproduction with the least diseases. Now we have infected reproduction and cancer is the number one disease killer of children
The most common is heart disease, cancer, diabetes, eye problems, back problems, hearing problems, auto immune (arthritis), appendicitis,
gall bladder failure. It is guaranteed that you will have one or more of these diseases. Just look around! Wake UP!
Your common academic understanding of science is really funny. You have no understanding of genetics and how humans breed, what mutations are, what defects and deformity is.
It is because of the lack of awareness of SCIENCE and how we are made that we ignore all rules for health. Sexual compulsions rule humanity.
Humanity is doomed by its ignorance and right now it is far worse than it has ever been in all of human history. The rate of new genetic diseases has never been seen like this before. Well over 3000% rise in all cancers in less than 100 years.
We now are not only producing more and more genetic defects from mating with our extremely distant relatives our thousandths cousins, we are producing an extreme rise in genetic defects by spreading diseases, viral infections, that attack our germ line cells and are destroying them one, two, three mutations at a time.
There is a study that states we are gaining some 3 mutations per generation on average and it is increasing with each generation. All it takes is ONE mutation to kill a fetus. We now have 33% to 50% of wanted pregnancies before 16 weeks that miscarriage because of this. And one mutation to created serious organ diseases, cancer, or any of the 8000 congenital and birth defects we have cataloged so far.
Here is how this works on the molecular level in this video from one of the most renowned medical labs we have. The HHMI Howard Hughes Medical Institute.
In this video you can see what a virus does when it transcripts into our DNA and destroys the normal cell function. This is exactly what a retrovirus does to ALL of our cells at the germ line level.
You can also view it here: http://evolutionsciencenow.blogspot.com/2013/06/ccr5-delta-32-deletion-mutation-hiv-and.html
We have accumulated some 98,000 to 120,000 in each person, and a total of 247,000 found in humanity, of these mutations at the GERM LINE level. Germ line mutations are permanent sources of our diseases that caused this idea of "inbreeding" to exist in the first place. This is where the term "Inherited Disease" comes from.
Until (before) we had degraded to the point where breeding with a close relative was causing clear sickness, weakness and deformity "inbreeding" did not exist.
I hope that clarifies it for you.