"Religious law is included in the definition of “legal system” in dictionaries. "

Those dictionary definitions were most likely written before the publication of your book which reveals that Canon Law orders the concealment of child sexual abuse crimes. That is, those definitions were written when Canon Law was widely respected.

"Canon law does not cease to be a legal system because there is something about it you don’t like. I don’t particularly like capital punishment, but those States which allow it do not cease to have legal systems as a result."

In my previous post I qualified my opinion about introducing bans regarding Canon Law. In a similar fashion, some countries explicitly ban underage marriages which are still happening in islamic communities outside islamic countries, which is a ban on a primitive cultural practice.

"If canon law requires bishops to break the civil law, they will still be punished by the civil legal system if they do."

Only if the Bishops get caught.