Party City review: Being racist towards a black employee I know

I walk into the party city in Chicago on 3417 n western ave and I see the manger yelling at a black employee for messing up one time. She then yells out this is why I never wanted to hire a black person in the first place all you people do is mess up. She then made the employee work more than the other people who was in the front with her. The Mexican lady's who was in the front she told them they can go to the back and relax and the black girl will take care of everything. I talked to the girl who was being treated this way and she wants to quit but can't because she needs a job to make money. The manager then told her she's not getting her pay check.