Since Illinois is an 'at will' state, your employer can fire you without notice and you can leave employment without notice as well. So how can employment be wrongfully terminated in this case? Simple - if the employer violates certain exceptions to this rule, which besides discrimination, also includes retaliation for certain actions you took to protect yourself in the workplace, violation of a work contract and termination.
Job discrimination based on unchangeable factors is not only unfair, it is downright inhumane. Fortunately, both private and federal employees in Illinois are protected against workplace discrimination in several ways.