There are some modestly happy, contented marriages. In most western countries the divorce rate is approaching 50%, true, but that also means 50% are OK. I agree that some of these may well be MRM material. The 'traditional arrangement' people. The majority of the population, men and women are brain-dead when it comes to recognising the problems and the causes though and need to be shown what is happening to our laws, social systems, schools, universities, literature, moral probity etc.
A major factor regarding the traditional 'man work, woman keeps home', is that as the feminists make such a fuss about how stultifying it is for women, the men start to realise what a bum deal it is for men. So I agree with Christiane that there is a recruitment pool out there waiting to be tapped. There are up and down sides. When ignorance is bliss 'tis folly to be wise for some people.