And how short-sighted, as people have pointed out, not to think that through a little further and see that if a woman leaves her marriage it might be for a good reason - perhaps even, just possibly, thanks to being able to support herself, she's able to remove her children from an abusive father.
The implication is that marriage is best, however shit it is for either party or for the kids. That can't be right. Speaking from my own experience, I was thrilled when I heard my parents were separating and I would no longer have to live with my abusive father and have to see him bullying my mum and leering at us. The first thing I said was "what took you so long?" (I was a teenager at the time). My mum was financially independent but the stigma of divorce was a major factor. Good riddance to the sanctity of marriage I say - where the hell this myth comes from that marriage makes people happy, I know not. It's a control system and a social institution like any other and it suits some, but it is not in itself a cure-all.
Good relationships are important and we very much need to teach children about those IMO, but that is not the same thing as marriage. There are many reasons why children of married parents seem to be happier - for example, couples who stay together long enough to get married before having kids are more likely to have a strong and committed relationship. So it might not be the marriage that counts, but the good relationship.