Barbara Eherenreich isn't a Democrat. Nor is Salon a Democratic organ, nor the Upper West Side the official Democratic headquarters. Flanagan isn't being attacked by the "Democratic Party," she's just pissy because the "Democratic Party" hasn't mounted a frontal assault against those who disagree with her lifestyle choices. Indeed, this is just an extension of Flanagan's normal romantic arguments to politics: she is a weak, vulnerable women in need of protection. Whether the answer is a strong man or an attentive party, the common problem is always her protested helplessness, which she insists all women share. The Democratic Party did nothing to Flanagan save not take sufficient notice of her assailants.
The only mystery is why male editors keep publishing her.
Which isn't really much of a mystery.