I enjoyed your description of yourself and your mission (maybe a bit Quixotic but never mind).
I guess the subject of your book, from both its title and the other things you've said, is likely to be similar to a book I've read recently, called "Family Court Hell" by Mark Harris, a UK based father of three daughters (you'll find his book on Amazon).
May I recommend that book to you and anyone else on this forum - I know Mark, and yet only knew half his story before, and I think it might amaze even someone like you.
I'll take a look at what you're doing and saying in return, and wish you the best of luck.
Graham