Genetic interventions that should overturn this right as a general principle..

This is the correct interpretation of the situation because it holds up the rights of individuals with respect to choice in relation to the type of childbirth they wish to have. If parents wish to have as little medical intervention as is possible then this is a choice that they as autonomous persons have currently and there is nothing specific about genetic interventions that should overturn this right as a general principle. On the other hand this interpretation also respects rights of children to open futures. This is particularly evident in the situation with respect to IVF technologies where these rights should override the more general right the parents possess to choose the level of medical intervention, even though in the situation above it appears to be matter of chance as to whether or not IVF technologies are necessary.