Anon, I fought feminazi child "protection" workers, lawyers, bureaucrats, and judges for years. Ex was expert-confirmed narcissist and psych child abuser.
I'm ex-mil, played the long war of attrition. Ex was able to alienate oldest (daughter), whom I have not seen since 2008. Was able to break through and save relationships with two sons, both now adults.
Dig deep. No judgement, nothing but love and support from this anon. Probably many, many others, too.