the problem with class action lawsuits is the extensive diversity of problems and families of the individuals involved in the lawsuits. these lawsuits only have any chance of success if filed in federal courts under the various civil rights laws. most states have passed laws against being sued and you can't sue them.
in addition, we actually need a grass roots political organization to CHANGE the laws regarding child abuse and to put the juvenile court systems out of business regarding claims of parental abuse. all parental abuse cases should be heard in criminal court. criminal court has very different rules of evidence and very few cases would make it through these courts.