I'm not attacking the more "traditional" roles. My comments were focused on the two-income families, of which cattlekid appears to be a member. If the arrangement you and your wife have works, that's great. If she's getting resentful because you come home and plop down on your butt and watch hockey, then you need to address that.
I am trying so hard to take away all of my wife's excuses for not ML with me. She'll always have stress, she can always claim to be tired, she can say she's itchy or too hot or too cold or that her allergies are bothering her. But I don't want her to say "no" because the living room needs to be dusted.