If one in 8 has that kind of accident in America they will seize all the kids and you will lose all of them, so other than just spreading your DNA that approach won't work. There are many, many documented cases of people having all their kids seized because they had a child with a brittle bone disease, and after their brittle bones break (happens easily with such child) the government blames the parent and takes all the other children too.
Many, many seems like overstating a rare corner case that can easily be proven.
statistically you'd only need about 0.0002 additional children to counter the risk of accidental deaths prior generations of children experienced.
Ok I am not sure what exact point you are making or arguing with. The op grew up as 1 of 3 and I think that's better than 1 of 1 :)