The authors' claim that Greenwood is "a fully realized antidote to the racial oppression of the time" means that the site was a black community where thousands of black families lived in social and economic prosperity, contrary to the conditions of racial oppression established in the country.
The details that the authors provide to support this characterization are based on the fact that the community was built by blacks for blacks to have more dignified living conditions.
It was a district where the black community resided and had about 10,000 inhabitants. There was infrastructure, work, commerce and leisure for the population, unlike the context of racial violence that blacks suffered in the USA.
But in 1921, in the city of Tulsa, there was a massacre against the black community that destroyed the district of Greenwood, with establishments and homes looted and burned by white people.
Therefore, the text "What the Tulsa Massacre Destroyed" explains about the fact that racial violence killed innocent people and erased the history of Greenwood, which was a black community that had so much possibility of ascension that it was known as the "Black Wall Street".
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