When a person complains in a toxic way about being unfairly fired then I'll believe that they got fired for being toxic rather than whatever thing they want to

When a person complains in a toxic way about being unfairly fired then I'll believe that they got fired for being toxic rather than whatever thing they want to tell you. It isn't tone policing, it is just common sense. In other words, in this scenario her tone adds extra information, discussing it is therefore not an ad-hominem.