"As Rebecca Traister wrote in 2005, 'Beating on 'women's' fiction -- and dismissing certain literary trends as feminine rubbish -- has a history as long as the popular fiction itself.'"
The article also goes on to define a big issue with women's fiction, which is that it's a very vague definition, and no one seems to know who gets to decide (publishers? readers? authors?) what ends up tagged as WF or not.