"Users of the phrase seldom offer any evidence beyond citing a fact about racial disparity while asserting shadowy structural causes that are never fully specified. We are all simply supposed to know how “systemic racism,” abetted by “white privilege” and furthered by “white supremacy,” conspire to leave blacks lagging behind. American history is rather more subtle and more interesting. Such disparities have multiple, interacting causes, ranging from culture to politics to economics and, yes, to nefarious doings of institutions and individuals who may well have been racist. But acknowledging this complexity is too much nuance for those alleging “systemic racism.”"