Threats of mass deportations loom on the post-2024 election horizon. Some supporters claim these will protect the country from immigrants who bring “bad genes” into America. But this is a misguided use of the language of science to give a sheen of legitimacy to unscientific claims. Politicians invoke genetics to confirm false stereotypes that immigrants are more violent than native-born citizens as a result of biological differences. This is despite the fact that immigrants living in the country with or without legal authorization have significantly lower crime and violent crime rates than U.S. citizens. Moreover, there is no strong genetic…