There's some truth in what he said. Reams of threads on here, 'Want to go PT as 'DP' and I cannot afford childcare and 'DP' earns more', 'I have to go back to work from mat leave but I'm already pregnant again and work's not happy', 'I have to go back to work and baby is only 1!' 'How can I work from home and earn £40k/annum?'
This with bells on. For every woman who posts on MN about how childbearing has interfered with their career, I know 10 in real life who have purposefully set about long-term SAHM, far beyond where their children are settled in full-time school and have robust immune systems etc.
For those who have gone back to work, they tend to work part-time in fields that are complementary to their husband's more all-encompassing careers.
Naturally, there are exceptions.
I slot into the second category above - my husband is the high earner. I'm pretty highly educated (I have a post-graduate degree) and I was earning a lot more money than my husband was when we met. I just lost interest after my children were born, and particularly after my husband started earning more money. I just don't care, I'd rather be around for my kids.
I'd no doubt be described as a cock-lodger if I were man. 
My husband is wildly appreciative of the things that I do at home; it all works for us.