More importantly, "transposons" (endogenous retro-viruses) spray damage all over a normal human cell's DNA about once a month. The damage would be cumulative.

More importantly, "transposons" (endogenous retro-viruses) spray damage all over a normal human cell's DNA about once a month. The damage would be cumulative. Gamete cells have special mechanisms to control transposon activity that skin cells lack. The child won't be getting a clean genome. https://en.wikipedia.org/wiki/Transposable_element https://en.wikipedia.org/wiki/Transposable_element