When talking about employment law, "the right to work states" is often used as a generic category used to refer to states with weak employee protections, since the right to work states generally are also red states: https://en.wikipedia.org/wiki/File:Right_to_Work_states.svg

It does. I'm talking about the fact that the fictional employee we're talking about is most likely non-union in a right to work state, thereby making it easier to fire them (without union intervention).