Wrongful dismissal question

I didn’t put this in GQ since the answer will probably vary by state and I’m justing looking for opinions (but I wouldn’t turn down some advice).

If you get fired from a job for doing something wrong (not showing up for work and not giving an excuse or calling), but others who have done the same thing have not gotten fired, can you sue for wrongful dismissal? Assume you have proof of the other employees’ wrongdoing.

Probably not. Most U.S. states go by the employment-at-will doctrine, which gives the employer the right to fire you for just about any reason it chooses, apart from a few specified illegal reasons (e.g. racial discrimination, whistleblowing). Unless you have a contract or can show that the “wrongdoing” was just a cover for one of these illegal reasons, there’s not really anything you can do.