As a reminder, this is why father's rights activist are not too happy with feminist groups

Parental Alienation Syndrom edition:

The National Organization for Women has learned about our efforts and is concerned about them. They have now sent out an Action Alert to counter our campaign. According to NOW's Tracy Simmons:

I am writing you, the leaders of various groups that represent battered women, for your help in one of the most important matters we will address this year. The American Psychiatric Association is considering adding Parental Alienation to the Diagnosticians book, which would legitimize this legal tactic into a real disorder.
Parental Alienation Syndrome has now morphed into Parental Alienation Disorder thanks to the fathers' rights organizations who are wildly pushing this through, and why wouldn't they? It benefits the abuser and discriminates against the victims of abuse, which are overwhelmingly women.
This gender specific, abuse excuse, junk science can not be allowed to enter into the scientific community as there is nothing scientific about a syndrome/disorder whose only symptoms are a uterus, divorce papers, and bruises. I ask that you all to take action against legitimizing this outrageous theory by e-mailing the APA and asking your groups to do the same.

This quote from Someone on reddit is fitting:

nothing in the above quote is true in regards to Parental Alienation Disorder. It is not gender specific, it is not an excuse for abuse, it is not junk science, and the symptoms do not include a uterus, divorce papers, and bruises.

The FRA position sounds very rational compared to that

A group of 50 mental health experts from 10 countries are part of an effort to add Parental Alienation Disorder to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM V), the American Psychiatric Association's "bible" of diagnoses. This scientific coalition is led by psychiatrist William Bernet, who explains that adding PAD to DSM "would spur insurance coverage, stimulate more systematic research, lend credence to a charge of parental alienation in court, and raise the odds that children would get timely treatment."

The DSM must consider whether Parental Alienation Disorder fits their scientific criteria for inclusion. Experts will say that they do not want this process politicized, and we agree. We are not seeking to influence the Task Force's view of the scientific aspects of PAD, nor are we asking the Task Force to include Parental Alienation Disorder due to pressure politics or our campaign. Our purpose is simply to ensure that the DSM Task Force is aware that Parental Alienation is a common problem in divorce/child custody, and to take a serious look at whether PAD meets their scientific criteria.