I'd like to better understand your view of women with low libido. You both seem to imply that it's most likely due to issues in her marriage. But then how do you explain women who are in marriages where both partners are happy having no sex, even though those marriages might have been sexual earlier? Surely you wouldn't claim that those women are happily avoiding sex only because of issues in their marriages? Why is it the husband's interest in sex that determines if a woman's lack of sex is due to issues in her marriage?
The way I see it at this point is that I'm in a marriage where my wife has become the type of woman who is happy with no sex, while I haven't been able to make that change. I don't see that there is necessarily anything wrong with either of us, nor that there are issues in our marriage aside from issues generated directly from our difference in desire for sex.