T____T
SoCal here.
Anyway, honestly, I'd probably prefer dating a guy that's on par, career wise, as me? Ideally, we'd match better if we're both white collar professionals, but that has more to do with the background. Probably both middle upper class, same lifestyle, etc.
As a woman, if there are going to be kids, it's going to be you. It's going to be you that falls behind while pregnant, it's going to be you that's more at risk. Men and women both can be fired from a job, but woman HAVE to leave their office (maybe even unpaid) for at least a month or so when they give birth. If the woman is also the sole breadwinner, there may be financial strains. If the woman makes the majority of the money, there's still going to be a noticeable effect on household financials.
Personally I don't want the burden of being the main one responsible for household financials (like if I earn 120k and he earns 40k). That's also a result of growing up in a sexist household and culture, but it's just "bad" for a woman to marry a man who earns significantly less than her.
Obviously I don't care that I earn more than my husband or that I have a graduate degree while he doesn't. I wouldn't care if I made significantly more, provided we both make over a set amount (I make 180k, he makes 90k). He would just have to do more household work and do the lion's share of parenting. However, in most households with two working parents, the mom always ends up doing a significant share of the household work and child raising, even if the two work similar hours. If this is the case, I can see why a chick would prefer a man who had a better job-- that way, overall, the effect on the household is more equitable.**
So I think there's more to consider that just "golddiggers." No doubt you'll have women who are looking to coast by on their husbands/looks, but for the rest of us there's reasons why it may trend this way.
**Personal example - I was working 70 to 100 hours a week when we first started living together, and he only went to class part time, no job. However, since he grew up in a household where the dad worked a ton and the mom worked but did most of the chores and child rearing, he still didn't do laundry, clean, take out the trash, wash dishes, or cook very much. He expected that I would do it. I was like, what the fuck? You need to do your share of the work.
It took a couple fights and a couple of months, but he now does almost all the household work, while I still work those hours and only do minimal household work. My husband is understanding and kind and not sexist at all, but even he was unable to escape the deeply ingrained sexist gender roles of a household. I can totally understand why a woman would not want this fight, especially because there's no guarantee her partner will step up to the plate (since most don't, based on studies).