Janina - I was joking but since you want to play... 
"There's plenty of people reading genre fiction on here."
What is "genre fiction"?
"women's fiction is often dismissed as 'chick-lit'"
What is "women's fiction"? I hope that is not what you call superficial stories about everyday women's everyday feelings and minor squabbles with friends, husbands, and kids, marketed in pink covers and titles like The Errand Boy's Sister or The Tailor's Wife in cursive letters. As a woman, I would find that offensive.
To the best of my knowledge, we are all women here and those books are not universally appreciated or even frequently seen on these threads. So how do you justify calling them "women's fiction"?
"good writers like Marion Keyes are creating more complex and meaningful literature "
Really?
Does Marion Keyes write complex and meaningful literature now?
I enjoy my share of beach reads all through the year, but I don't call them literature, let alone "complex and meaningful literature" in a world that has books by Leo Tolstoy, David Mitchell, and many others of similar talent and vision.
Everything is relative, of course, and Marion Keyes's stories might be complex and meaningful compared to the other books you read, but please don't assume that this viewpoint is shared by all women.