I think the main message the father was trying to convey to his daughter is to respect those who love you, or everything around you gets destroyed. This most certainly includes relationships. Trust is seldom ever given back to those who destroy it.
This father loves his daughter very much and to see her act so callously towards him and her mother shows she did not value them. So, taking something she "valued" and destroying it does not even hold a candle to the relationship she attempted to destroy with her parents.
The laptop can be replaced but you only get one mom and one dad. And .... mom and dad are not around forever.
Once upon a time men could speak honestly and wisely and people would listen. Now it seems that propaganda is the preferred method of communication regardless if there is any truth behind it or not.