Medical Miracle or Modern Eugenics? Gene Modification in the 21st Century

The rapid development of gene-editing technologies has introduced new possibilities for preventing disease and enhancing human traits, while also raising profound ethical concerns about the future of human reproduction and the boundaries of scientific intervention. This paper examines the ethical implications of gene editing by placing it within the historical context of eugenics, a movement that sought to improve human populations through controlled reproduction and selective breeding. By analyzing both early twentieth-century eugenic practices in the United States and Nazi Germany and contemporary advancements such as CRISPR-Cas9, this study evaluates whether gene editing represents a medical breakthrough or a modern continuation of selective human engineering. Drawing on the ethical principles of beneficence, nonmaleficence, justice, and autonomy, this paper argues that although gene editing offers significant potential to reduce suffering and eliminate hereditary disease, its application, particularly in germline modification, poses serious risks to safety, equality, and the re-emergence of harmful ideologies. Ultimately, this paper concludes that gene editing is not yet ethically permissible due to insufficient regulation, limited understanding of long-term consequences, and the potential to deepen existing social and global inequalities.