Feminists

What if there were a way to prevent hemophilia or some other serious disorder?

I'm not suggesting that CAD is equivalent to blindness. I'm questioning your broad statement about fetal engineering.

Are you truly against any and all forms of "fetal engineering"? Are you against fetal surgery, too? (Which has been used to correct fluid in the brain, for example, and prevent life-long brain damage.)

Whatever my feelings about the (I agree) inadvisable treatment for CAD as described in the OP, I think we should be considering the worth of fetal "engineering" and fetal surgery on a case by case basis.

It seems ironic to me that people who would champion a woman's absolute right to have an abortion, including when she found herself carrying a fetus with a medical condition, would object to her trying trying to treat that medical condition in the womb and to carry it to term.