I really don’t agree with the whole dressing it up as something it’s not: ‘we’re a team’, ‘he couldn’t have built his business without me’ and so on
There's a book called 'Who Cooked Adam Smith's Dinner?'. It's about women and economics, but that's not why I mention it.
I mention it because of the fantastic title. Implicit within it is the suggestion that Adam Smith, the father of modern economics, was able to fully realise his brilliance because he didn't have to clean the bathroom and stack the dishwasher before he sat down to work. If he was in peak flow in his study, he didn't have to stop halfway through to make dinner, someone simply brought it to him (his mum, as it turns out).
Men can put all their energy into their careers when they are able to open their drawer every morning to find clean socks and pants there, ready and waiting, lovingly laundered by someone else. When domestic shit isn't taking up your headspace, you can use it more productively.
So yes, it is a team effort. And fair reciprocity in that situation I think. If the SAHW was to refuse to do laundry or cooking or any housework at all, then she would be a minge-lodger, because then they actually become a detriment to the other partner - taking half of everything and contributing nothing in kind.