What is nuclear racism?

Answer 1

As far as I know, there is no such thing, though, depending on the context, it could mean looking down on nations or cultures which do not posses nuclear technology.

Answer 2

Nuclear racism refers to the disproportionate impact of nuclear-related activities such as waste disposal, uranium mining, and nuclear power plants on marginalized communities, particularly communities of color. These communities often face higher risks of exposure to radiation and environmental contamination, leading to health disparities and social injustice.