To be honest. The entire concept of at-will employment is the freedom to allow corporations to dispose of employees for any reason or no reason at all. Many times these reasons are malicious. At the end of the day, regardless on merit, they have the power to essentially blacklist anyone they deem "unsuitable", through the act of termination by tarnishing your record with it, making this harder and harder to recover from each time. This proxy-discrimination is a designated effort to legally empower those that want certain types of people to be in demand and certain types of people to always be jobless. I been there. It has taken me over a decade of underemployment, unemployment, poverty and homelessness to finally come to the realization that its actually LESS risky being self employed, an entrepreneur or in any position where arbitrary rules set by a "manager" doesnt have you walking on eggshells. Far too often, I've seen people lose jobs because of the ethical, technical and emotional shortcomings of their supervisors.