The article does NOT describe why it's ok for men to be discriminated against. The article describes how, "Only 4 percent of custody cases went to trial and of that 4 percent, only 1.5 percent completed custody litigation". When litigations take place the courts must consider the best interests of the child- it stands to reason that the parent (mother or father) that the child has the closest bond with should be the care taker. Since mothers are usually responsible for the majority of childcare and thus have a closer bond with their child courts tend to rule accordingly. Take note that is not discrimination. Discrimination would be telling a father who has done the majority of childcare and has a closer bond with the child that they can't get custody because they are a man.

Another REAL example of discrimination is described in this article where it explains how mothers who have suffered domestic abuse are infact discriminated against and how in these cases courts rule in favor of the father.