Raising children is very important work. The future of everything rests upon the next generation, and nuture is a least as important as nature. Good child raising creates good future adults. When Ann Romney says she raised five boys, I have a lot of respect for that. That's harder to do, and more important than doing paper work in some one's office building.
The Obama people's recent slam on child raising by mothers is a not-so-subtle slam at the importance and dignity that out to be attached to child rearing. Support motherhood, it's truly important.