I agree some what but really how can a parent who has walked away from his/her family stand up in court and claim parental alienation.
Plus GM son's are teenagers so their voice should be taken into count on their visiting their father.
I read on another board where the father left and his teenagers didn't want to visit on the weekends because they wanted to hang with their friends and girlfriend,
Her wasband tried the p.a. in the courts and it was thrown out due to the age of the kids and the fact that he left his family voluntarily .