Employer discrimination, in general, is the negative or unfair treatment of employees based on their status in a federally protected class. These classes include gender, age, race and religion, among others. Employees who are harassed or treated in a hostile manner by their employer or fellow employees may have a cause for legal action for such treatment.
Most employees in California, and across the country, are considered "at-will" employees. This entitles their employer to terminate their employment at any time, and for any reason. An employer is typically protected from liability in such situations, unless they are found to have violated an employee's rights or protections in doing so.
Businesses seek to gain profits, and this goal extends to their workforce as well. However, some employers act in violation of the law to save money on benefits and wages to be paid to their employees.