I'm really not sure if they're aware of the statistics or not? I think the majority of women who actually choose to leave their marriages and file for divorce do so believing they'll be better off not married to that person anymore. What exactly "better," entails, I can't really pretend to know. I guess it depends on their individual marriages and what they think the issues inside of it are/were.
For all I know it could be something i'd personally consider minor or trival. Some of my own cousins, aunts, and sister, have been through more men than I could count on two hands, most were bad but even the seemingly "good" men, they would take issue with. It seemed as though they'd sabotage those relationships out of pure boredom or need for drama. I guess in their own eyes they would be better off without some boring man that was too nice but that doesn't necessarily mean the men themselves did anything wrong.
On the other hand, my great grandmother, a couple of my aunts, one of my grandmothers, and even my own mother (though my parents did reconcile), didn't walk away from their marriages themselves, they were left by their husbands. None of them pursued child support, didn't receive alimony, they didn't get any properties/homes, and they ended up raising not only their own children but their grandchildren as single working women.
I actually got curious awhile back and started looking at the stats after everyone was putting out the 70% divorce rate issued by women. However, something else that's also commonly discussed on these forums and on other platforms, also caught my interest into that topic. We're often told that plural marriage can save most marriages because women would no longer divorce for the reason of infidelity. Implying that women often initiate divorces because of men cheating. I assumed based on the narrative being put out, that infidelity would be the highest reason stated for women intiating divorce, but to my surprise infidelity wasn't even on the very top list of reasons. The main reasons were emotional disconnect, bickering and arguing, unfair division of labor, then infidelity, financial instability, and finally abuse.
I'm only saying that because I think both sides (men and women), could benefit from actually listening to one another, as opposed to the motives of others.
I'm not sure if that answered your question or not?