This isn't a child though, in a sense. This is a designed good. So yes, they should be responsible for any condition they knowingly design into another person.

This isn't a child though, in a sense. This is a designed good. So yes, they should be responsible for any condition they knowingly design into another person. If you believe in the possibility of trait selection in this manner to an advanced level, it is vital that this happens. A tyrannical father may demand his children may be atheists, and prevent them from going to church now. A tyrannical father in the future may have the ability to edit the God gene (assuming one exists for the sake of argument) right out before birth, never allowing the chance of it. And this is the best case, in which the effort to design doesn't saddle the child with a host of other conditions.