I think that when you have 40 million people unemployed their is a sense of fear, rage and distrust of the system and yes this incident would be bad either way but I think this is just fuel to the fire. These things are happening and have been happening for years, nothing gets fixed, as "previously disadvantaged" person as they like to call us I can tell you nothing has really changed.
Racism is just a narrowed version of the classism we actually all part of, if everyone in the "lower classes" actually stopped fighting with one another they could look up and see the sham they are living on where upward mobility and prosperity is cherry-picked by certain people/industries/networks and not down to hard work alone.
Until that is solved, nothing will ever change