She doesn't tend to write on American conservatives as often, I would not expect to see that kind of comment in an article like this.
I think it's important to realize that she isn't talking about all women in this article, or even "feminism". She's talking about the Democrats, and arguably not Democrat voters as a whole but a fairly powerful group there who tend to be the group they shape their policy for.
I think she's making a similar argument to what has happened in the Labour Party, where the policy views now tend to reflect their middle and upper middle class, university educated voters. Not just what advantages them, but what they see as just and good. But that means it may not be so reflective of what working class people see as important for themselves, or just. The Democrats approach to women's issues she sees as being mainly reflective of the needs and also ethical views of that same demographic, which may or may not be what wc women in the US want, or believe is important, but even if they do it is probably not for the same reasons.
And actually if you look at poor and wc women in the US, although they certainly access abortion services more frequently, the reasons are not necessarily the same, they more often reflect an inability to afford the pregnancy or child which might otherwise be wanted, and you also see a much more ambiguous relationship to how and why contraception and abortion services are marketed in poor communities.