I am sorry you feel that way, and I suspect it might be a year or two of non complyance before they ask you to adopt them.
You can wait it out, or you can possibly loose everything, or you might win.
Thats it, thes are the possible outcomes, and I suggest loosing everything, might be more likely then winning at this stage of the game. You should try to wait it out, and stop trying to push someone who might push back against you. (the parents)
Maybe if you dont push them they'll continue to screw up, and CPS will agree you should adopt them.
Yep. I think you are right.