I didn't know about the long history of racism involving Elon's companies. But it seems Tesla had a problem discriminating against black workers since at least 2015:"including slurs, nooses, swastikas, and threats found on equipment, in bathrooms, elevators, and even on new vehicles. The EEOC also charged Tesla with retaliating against employees who complained"
and has come up repeatedly since then, involving many workers and in different locations and newer factories. They still have a few lawsuits open against them from workers, shareholders, federal & state agencies.