Legal Question in Employment Law in California

Not only are there no laws against 'unfair treatment' or poor management, but the employer is entitled to set and change hours, duties, titles, compensation, benefits, leaves, vacations, holidays, policies, rules -- including hiring standards and requirements -- unless the company policies or decisions are based upon illegal discrimination, harassment or retaliation as defined under the ADA [disability], Civil Rights [age, race, sex, ethnic, religion, pregnancy], FMLA [medical leave], Whistle-blower, or similar statutes. I don't notice 'lack of transportation' as a listed category of immutable characteristics protected by law.