By advocating for selective breeding and genetic engineering, eugenics promotes the idea that some individuals are inherently superior to others based on their genetics, which is a dangerous and discriminatory notion.

Furthermore, eugenics often relies on subjective criteria to determine which traits are desirable or undesirable. This can lead to the marginalization and discrimination of certain groups based on factors such as race, ethnicity, or disability. Eugenics has a long history of being used to justify discriminatory policies, such as forced sterilization, segregation, and genocide, which have caused immense harm and suffering to countless individuals and communities.

Finally, eugenics assumes that genetic factors are the primary determinants of an individual's traits and abilities, ignoring the complex interplay between genetics and environment. This reductionist view of human biology is not only scientifically flawed but also ignores the importance of environmental factors such as education, social support, and access to resources in shaping an individual's life outcomes.