If you really want to ask, is putting plastic covers over outlets for safety of our children morally wrong? Is all the safety training and safety equipment morally wrong? Without the advances of safety we would have millions of people dying and darwinism would actually be working in the human race. Humanity would actually be able to evolve to our next level except because of our intelectual abilities, we have staved off our next level of evolution.
Change the question, is curing cancer morally wrong? Curing color blindness wont change much. Those who are color blind know not to go into bomb diffusion jobs or other color coded problem jobs. Evolutionary wise those who are color blind are not getting themseleves killed or dying out of the human gene pool and instead are passing on the 'damaged' gene set.
Question now is, do we now chose our evolutionary paths now?
Yes.