
Well Actually it’s not a good thing in case there are genetics diseases (it’s hard to explain and it will be kinda long so here is an exemple) the X chromosome of both parents (XY for the dad and XX for the mom) is ill, the dad will have the disease and we can see it either with tests or physically, but the mom has two XX and usually when one X is ill the other X will function instead so the mom have the disease but we can’t see it physically unless she does a specific test ... Now those parents had children some of them had the disease it may appear physically or not (even if it’s a girl because if she gets the ill X of the mom, she will get two ill XX so the disease will be physically seen too). The children also had other children and then two cousins married each other, the two cousins have high chances of having the disease even if we can’t see it and by marrying each other their children will have a higher chance of getting the disease as well. So that’s why its detested to marry a relative.
let’s sit here and think - is incest really wrong? like other than genetic problems/ and it being illegal in some places.. yes in my morals I believe it’s wrong but I want to know if anyone has an actual other reason that it being just your morals