“Designer babies” are based on a simple principle: if scientists have the ability to prevent diseases before a child is born, that is a strong and valid reason to genetically edit embryos. Tools such as CRISPR make it possible to reduce or even eliminate severe diseases. Conditions like cystic fibrosis, Huntington’s disease, and sickle cell disease can already be screened for before pregnancy. In the long term, this means a child can be born free of diseases that would otherwise require lifelong treatment if left unedited.
Genetic technology can also allow scientists to build natural disease resistance into embryos. Some people have genetic mutations that make them resistant to infections such as HIV. Scientists also point out that families with sick children can use embryo selection to help save the child. For example, a “savior sibling’s” stem cells from umbilical cord blood can be used for life-saving treatments.
There are also strong economic arguments in favor of gene editing for embryos. Treating genetic diseases through gene editing can not only prevent these conditions but also save money and reduce the physical and emotional burden on patients and their families. While concerns about misuse and the idea of creating “perfect” humans are often raised, scientists argue that the primary goal is to reduce suffering and improve quality of life.
Source: Why Designer Babies Are Good: The Case for Gene Editing - ScienceInsights
Extra Source: What Are Designer Babies?
This is really interesting because the ability to actually prevent certain genetic diseases before birth could completely change how we think about healthcare and quality of life. At the same time, I get why people are hesitant as once this kind of technology is possible, it’s hard to define where the line should be drawn. That’s where concerns about eugenics come in, since it could shift from preventing disease to selecting traits, which makes the whole issue a lot more complicated ethically.
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