DeParle's "Two Classes Divided by 'I Do'"

In Jason DeParle's article, "Two Classes in America, Divided by 'I Do'", he suggests that having a home with married parents brings not only more income to the family but is essential to the upbringing of the children and family life. However, in Jeanette Walls' memoir "The Glass Castle", she rebuttal through her own life experience that having two parents may not always lead to a traditional nurturing environment. 
Wall's family may not have been the most traditional, but her mother and father's marriage may have been the only thing "normal" aspect of their peculiar lifestyle. However, despite the marriage that was suppose to unify the Wall's as a family, according to DeParle's article, it seemed to play a paradoxical role in their family dynamic. It goes so far that at one point in the memoir, Rose Mary Walls, the mother of Jeannette Walls, refers to her husband as "a cross we [the family] must bear" (Walls, 105). Seeing as Rose Mary is saying this to her children, shows that their marriage does not unify their family, but in contrast, is a burden on them. 
DeParle's article states "changes in family structure also broadened income gaps and posed new barrier to upward mobility" (DeParle, 1). Though DeParle supports many of his opinions with factual statistics, he does not take into account that not all children from married couples do not come from a "privileged" households that have "traditional" financially and emotionally supportive families. Walls' parents did not find financial stability through marriage due to their lack of responsibility and pursuit of their own personal "dreams". Rex's unrealistic quest for gold is ultimately what continuously held him and the family back from being able to focus on realistic successes. Rex would mask his addictions to gambling and alcohol with his prospector and glass castle dreams. Likewise, Rose Mary's dream to become an artist held her back from being a teacher to have financial stability for the family. Both of Walls' parents go back and forth with their own dreams and leave their children to raise themselves and each other. 
Though Jeannette did have unique challenges, despite coming from a home with married parents, she eventually found the drive to follow her sister to New York and become a successful journalist. DeParle's statement that, "You're more likely to rise out of the bottom if you live with two parents, and you're less likely to fall out of the top" proves to be true for Jeannette. And even though her parent's are still living as they did when they were children, Jeannette and her sibling rose above poverty to pursue a better life for themselves.