Young adults have bad days and make mistakes, just like everyone else. We all say some pretty stupid stuff at times, just as Banks did that night. I bet (hope) that he learned his lesson, and don't think he needs to be reprimanded with dismissal by any means.
That being said... did you hear him speak? Did you see those teeth? Banks is absolutely a thug; that's not an indictment of his character or commentary on an unfortunate warrant situation, but rather a pretty clear observation based on the colloquial meaning of the word.