Eugenics rejects the idea that all are created equal. Equality is supported by both Judeo-Christian theology and secular enlightenment philosophy.

I can think of little modern philosophy more regressive than the idea that a self-appointed superior can determine that another is inferior to the point that they (or their offspring) should be culled from existence. Eugenics and racism have been intertwined since the beginning and with a modern twist continue to target vulnerable populations.