many if not most people might voluntarily employ a disassortative mating strategy independent of any sort of state coercion. In the Cystic Fibrosis community,

many if not most people might voluntarily employ a disassortative mating strategy independent of any sort of state coercion. In the Cystic Fibrosis community, many people have no idea they are carriers and know nothing about the condition until they have a child with the condition. And then they are left with the gut-wrenching decision-making process of "Should we have more kids, knowing there is a 25 percent chance they will also have this Dread Disease?" This is a huge hot-button topic in the CF community, or was when I used to participate in CF discussion spaces. As the saying goes, most people "wouldn't wish this on their worst enemy," much less their own child whom they have to raise. (If they have any idea what is involved, most people wouldn't wish raising such a child on themselves. It's a significant burden to care for such a child. That alone is enough reason for many people to not want a child with a serious genetic disorder.)