A longer look at state differences in history textbooks includes this bit about suburban growth:
We cannot fully understand places and communities without knowing about how race and ethnicity plays a part in the story. It is clear that the past included a whole host of legal and informal structures existed from the beginning of suburbs to keep non-whites out. This included: redlining, sundown towns, refusing potential homeowners in Levittown, government policies that helped whites move from cities, and exclusionary zoning. I argue this is one of the reasons suburbanites like suburbs so much: they were able to exclude those they did not want to live near. Some of these techniques, and more recent ones, still work to help keep some suburbs more homogeneous even as more immigrants and non-white residents moved to suburbia and residential segregation has decreased.
Without widespread knowledge of how the American suburbs developed, perhaps this is why exist videos like “The Disturbing History of the Suburbs” exist. The suburbs may not be only about race – I list six other factors that matter as well though the seven factors are all intertwined – but suburbs are not simply the result of neutral free-market forces. Understanding what helped create the suburbs and gives social life in suburbs today its shape will help give future suburbanites, perhaps a majority of Americans, better operate within their context and potentially shape new kinds of suburbs.