It seems that Donald Duck III wants to get rid of anything that can have Blossom, Bubbles and Buttercup damaged beyond repair when he finally does get them.
Recently, in a press conference, Donald III has confirmed he wants to kick his nephews out of his house because of how much damage they cause, saying that that’s not good for when he finds Blossom, Bubbles and Buttercup.
However, unlike Bolivar the dog, who got kicked out a year ago for major disobedience, Donald III will try to keep himself from kicking his nephews out until he actually does find the Powerpuff Girls somewhere, after which he will force his nephews to live at Donald Duck Comics HQ.
The nephews are not happy with this, claiming they are actual people that should be allowed to live with Donald until they go to college, unlike Bolivar, who was just a pet.
Regardless, when he does find Blossom, Bubbles and Buttercup, Donald III will kick out his nephews and send them to Donald Duck Comics HQ.