Workplace Favoritism And Unemployment

I am unsure whom to address regarding this issue, but there is a principal supervisor showing favoritism towards Colombian employees across all shifts at the Carson warehouse. I requested permission from the principal supervisor to keep my phone for emergencies, as I have a child in school who may need to contact me. However, my request was denied because I am not on the approved list, while others are allowed to have their phones to watch soccer games and use social media in the warehouse. Even subordinate supervisors are aware of this bias and avoid interacting with Colombian employees for fear of retaliation. One supervisor even apologized to a Colombian employee after they complained to the principal supervisor. There is no effective way to address this favoritism, as the principal supervisor's associates secretly photograph supervisors without their knowledge. Due to discrimination and unequal treatment, I have chosen to resign voluntarily from my position. Am I elible to win my case with unemployment