She is being a normal indoctrinated 5 year old.
I was just as passionate when I was her age (with no additional encouragement from parents just me being me from what I pick up at the Hall)
She is a bit angry and probably frustrated/fearful for the division she sees happening in yalls household.
She is being a 'good dubbie sister' and making her stand for Jehovah as she has been taught.
Which leads me to point out something I and others used to remind husbands like you... The WTS has long instilled various techniques into us Sisters that create automatic trained loyalty responses when confronted with alternative anti-WTS male direction. Your wife and daughter are applying these principles in the wake of your attempt to question WTS protocol/beliefs.
I am a fully 'awake/conscious' Sister and these loyalty responses still pop into my head when certain buttons are pushed by my husband.
What you should come away from this experience is the fact that your household is in trouble and in full WTS reaction due to your present path of attempting TATT.
My advice is stand-down and allow the waters to calm.......
Anything else and you are playing right into the WTS hands.
Regroup and work on more subtle infiltration...... you are of no real influence to your daughter nor your wife if they don't trust you.
You will not regain their trust until they both feel 'safe' and 'safe' isnt going to happen unless you consistently act like a good dubbie dad/hubby/brother for at minimum of several months......if you aren't willing to do that than expect the 'us vs him' division to grow and deepen.