Exactly foxinsocks!
I don't think anyone on here is saying that having children is always easy, and I certainly don't know where Earthstar gets the idea from that 7 month olds typically sleep that much during the day because mine certainly didn't!
However, this is the 21st century - people aren't boiling up water in the copper to do the laundry by hand and sweeping all their carpets with a dustpan and brush! Most of these jobs really don't take that long, and it's entirely reasonable that the person at home, if there is one, male or female, does them. Even with 3 pre-schoolers, I managed all the basics while on Maternity Leave. While the baby is small, you can pop them in a sling while you do a bit of housework, and once they get to toddling age there's numerous ways you can involve them in helping. Give them a dustpan to 'sweep' while you hoover, of their own pile of little clothes to 'handwash' or let them stir mixtures while you're cooking. All normal stuff!
If you're both working outside the home, then of course housework should be shared, but if one person is at home, then they should be doing most.
One thing no one has mentioned yet, is probably the most fundamental aspect of going out to work, which is the fact that you are having to meet other people's deadlines and targets. It isn't just being out of the house for 10 hours a day - it's the pressure of delivering, and the more high powered and responsible the job, the more that's the case. That's the reason that when I get home from work now, I need at least 20 mins to sit down and mentally unwind (our children are older now and so can just ignore me!). However hard looking after children is, and yes, physically there were days when I was knackered with 3 pre-schoolers, you never have to meet someone else's targets, or have the pressure of going out to work. At the end of the day, if you have the occasional 'slob' day where you stay in pjs all day and eat sandwiches, no one is going to judge you, least of all your children, who will probably love it now and then.
No wish to paint a negative picture about work - I wouldn't be without my job - but I think sometimes when people give up and stay at home full time, there's a danger of forgetting the realities of working like, and falling into the trap of thinking it's easier than being home all day with children. Unless you have a dead simple no pressure job - which these days is unlikely - it isn't.