Eugenics: Definition, History and Ethics
Eugenics refers to a historical movement that sought to deliberately influence the genetic traits of humanity. It is today regarded as scientifically discredited and ethically unacceptable.
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Eugenics refers to a historical movement that sought to deliberately influence the genetic traits of humanity. It is today regarded as scientifically discredited and ethically unacceptable.
What Is Eugenics?
The term eugenics (from Greek eu = good, genos = origin, descent) refers to a political and scientific movement of the 19th and early 20th centuries that aimed to improve the genetic composition of the human population through deliberate intervention. The term was coined in 1883 by British scientist Francis Galton. Eugenics is today universally rejected by science and society as pseudoscientific, racist, and profoundly unethical.
Historical Background
The eugenics movement emerged in the late 19th century, influenced by Charles Darwin's evolutionary theories and a growing interest in heredity. Two main forms were distinguished:
- Positive eugenics: Encouraging reproduction among people considered genetically desirable.
- Negative eugenics: Preventing reproduction among people deemed genetically undesirable, for example through forced sterilization or marriage prohibitions.
Eugenic ideas spread widely in the early 20th century, including in the United States, Great Britain, Sweden, and Germany. In Nazi Germany, negative eugenics reached its criminal peak: it formed the ideological foundation for the so-called Law for the Prevention of Hereditarily Diseased Offspring of 1933, which led to the forced sterilization of over 400,000 people, as well as for the Holocaust and the Aktion T4 program, in which people with disabilities were systematically murdered.
Scientific Criticism and Rejection
Eugenics is based on fundamental scientific errors and ethical failures:
- Oversimplified understanding of heredity: Most human traits are influenced by a multitude of genes and environmental factors. Simple selective breeding is biologically impossible.
- Arbitrary evaluation criteria: The classification of traits as desirable or undesirable was always socially, culturally, and politically motivated, never objectively scientific.
- Violation of human dignity: Eugenic measures fundamentally violate the right to bodily integrity, self-determination, and the inalienable dignity of every human being.
- Promotion of racism and discrimination: Eugenic theories regularly served to legitimize racism, ableism, and social inequality.
Eugenics and Modern Medicine
Advances in human genetics, such as prenatal diagnostics, gene therapy, and preimplantation genetic testing (PGT), raise new ethical questions. Critics sometimes raise concerns about the risk of a new, liberal eugenicism. Modern bioethics, however, emphasizes the crucial distinction: contemporary genetic medicine aims to prevent individual suffering, is based on voluntary and informed decision-making, and respects the autonomy of each individual. State-mandated or coerced selection of human beings is incompatible with the principles of modern medicine and international human rights.
Ethical and Legal Classification Today
Eugenic practices are prohibited and condemned in Germany and worldwide by numerous laws and international agreements. The Basic Law of the Federal Republic of Germany protects human dignity as inviolable (Art. 1). Genetic diagnostics in Germany is strictly regulated by the Genetic Diagnostics Act (GenDG) to prevent discrimination based on genetic characteristics. At the international level, the UNESCO Universal Declaration on the Human Genome and Human Rights (1997) prohibits any form of discrimination based on genetic characteristics.
References
- Kevles, D. J. (1995): In the Name of Eugenics: Genetics and the Uses of Human Heredity. Harvard University Press.
- Paul, D. B. (1998): The Politics of Heredity: Essays on Eugenics, Biomedicine, and the Nature-Nurture Debate. State University of New York Press.
- UNESCO (1997): Universal Declaration on the Human Genome and Human Rights. United Nations Educational, Scientific and Cultural Organization.
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