This sounds almost like a tautology or a "no true Scotsman" argument. If "insecure" <=> "condescending" by definition or "well, if he's bad mannered he can't be

This sounds almost like a tautology or a "no true Scotsman" argument. If "insecure" <=> "condescending" by definition or "well, if he's bad mannered he can't be really secure", there's not much to argue.