Prenatal screening I've described is already happening and it isn't genetic engineering. Under capitalism/white supremacy new medical or educational technology will first be only available to favored class/race and help them get even more ahead. It sucks, but probably not a reason to stop people from getting treatment/education. I'd say those things should be examined on case by case basis. Like saying rich kids should have DMD and die at 15 just because some poor do seems harsh.