Legalize consensual incest in all Countries around the world

1/ It is better to talk about taking down the incest taboo socially,in places where it's legal as an adult to have sex with whoever adult or adults you want,like in France,Russia. Netherlands,Italy,Turkey,Spain......Or in jurisdictions where it's not anymore legally penalized as in New Jersey. 2/ in places where incest is lightly penalized,sanctions on consenting adults should be banned like in some US States. 3/ in jurisdictions where the sanctions are very severe,from 15 years to life detention,as in North and South Carolina,Illinois,Texas,Ohio.....Australia(most States),United Kingdom,Ireland..... Penalties should be relatively reduced,as a first step. 4/ in order to prevent deviations like rape,or intercourse with minors, in their respective jurisdictions,many countries around the world have mild to severe penalties,and cases like that are considered as any child assault,child rape and statutory rape. For instance,France since 2010 put penalties on incest sex with minors under 15 wich is the legal age for sexual consent out there;the Netherlands raised the age of consent for incestuous relationships from 16 wich is the general age of sexual consent there to 18. 5/ if sex between human beings is really meant at first for procreation(it isn't anymore anyway) sex outside legal and official marriages should be unlawful and even severely penalized and even socially band anywhere in the world. 6/ if incest marriage must be forbidden and even sanctioned because it could probably result in birth defects more than sexual relations between total strangers,so must marriages for people having hereditary and genetic diseases be forbidden,unless they are permitted marriage but not procreation,wich could perfectly be a solution for incestuous couples and or families. But in order not to prohibit people from their right to have children from their blood and flesh,they should like I said in the first round, undergo medical laboratory tests,whether they are blood related,regardless of the degree,or not at all. I know that in my country,Lebanon,in the Middle East where as in the majority of the states of the world and about the half of the USA,marriage between first degree cousins is very legal(the son or the daughter of a paternal or maternal uncle or aunt) Couples must undergo medical tests to prove being free of diseases,before marrying,that are conducted by heredity and or genetics. This is applied in Brazil,Aborigean tribes in Australia,orthodox Jews and other minorities in Rode Island,for uncle-niece and aunt- nephew marriages; the same in Sweden for half brother and sister marriage wich can legally and officially take place after soecial permission Special permission by the Government and of course medical tests. 7/ homosexual couples or groups,gays and lesbians,cannot procreate,so I don't see the slightest problem here. 8/ Finally I don't see any problem if children are raised to believe that incest feelings and or relations are very natural,because parents have the right to raise their children according to their moral values,ethics,social,political and religious beliefs;taking in consideration as I already said that sexual assaults and rapes against minors,whatever is the age of sexual consent in a given jurisdiction,are being severely sanctioned .