What I was saying was that this is often not the case, even in situations when the wife works the same hours as the DH.
But its often the case that men do very little and dont engage much when the woman is a sahp either. Look on mn and you will see threads of both working mums and sahms. But I don't presume being a sahm is bad for women. That's my point. Earlier in the thread you were talking about how it's not helped women to work because men dont pick up the slack. That's because those men are dicks. Not because they are men, but because they are dicks. Some men are dicks regardless of their partners employment status.
Nothing to do with feminism or women working. If anything women, still being cast in the homemaker and caregiver role, has more to do with it.
Of course working women sometimes get the short end of the stick. Just like some sahm do. Some working dads do and some sahd do too. That's nothing to do with feminism.
It's not great that exdh each alot at home. Its expected because we were partners. He is a dick, but in a different way. 
However, my now dp isnt a dick at all and still does at least half, if not more housework. Because he works slightly less hours and because I have ds. Dp only drives a motorbike and I chose not to remove ds from his school when I moved area, post divorce. So I do the school run. Dp has offered if i move ds school that he will walk and pick him up. At the moment, neither me or ds wants that.
So dp does more at home so we get time with ds when we get in. Rather than doing housework. I do my share in bits or the weekend. It's not great, I am not lucky. It's our home, so we are both responsible. I took a break from work last summer dp still did plenty at home, even though he was the only one working. It's not a great that an adult does their fair share at home when both work. Its should be the norm.
Dp isnt DS' dad but still wants ds to have the best he can have. Ie time with me and time as a family.