Japanese "Sushi" is rice that was used to pack freshly caught fish into boxes before Refrigeration for transport to towns and Cities, see Japanese TV Station NHK "History of Sushi".Japanese word for "Raw Fish" is "Sashimi". Referring to "Raw Fish"as "Sushi" by Caucasians was used as a Racist Derogatory Slur from 1600s to 2019 against Japanese as something disgusting about Japanese, Japanese Culture.