Do feminists hate traditional wives? I hope not?

I have a Niece (16) who recently begged me to let her come live with my wife and i.

Her reasoning, She told her mom (my wife's sister) that she doesn't want to be like her, She wants a loving family, children, and a husband. Her mom is a single mom, who works 60+ hours per week. she's one of these people who looks at my wife choosing to be a stay at home wife and mom with disdain like she is somehow better than her. According to my niece, she has said thing to her like "I want better for you than to waste your life being a wife and mother." Her mom calls my wife a traitor, Worthless, Stupid, and so on.

In our Niece's conversations with us, we have learned that mom is never there for things like school activities, or when she is sick, or when she achieves something. She states that she is lucky to see her mom 3 or 4 hours per week, other wise its almost entirely nannies and day care. she's never had a home cooked meal at home, its always frozen meals or take out. The first time we had her at our home, and my wife and i cooked (yes we share this responsibility), she thought she had died and gone to heaven. Before you ask "where's her father" in this. She was a sperm bank baby, She has no father. More or less, her mom treats her like she is an accessory at the best of times, and an inconvenience at the worst of times.

Her moms reaction to her wanting the kind of life my wife has was to ban her from ever seeing us again, and telling the rest of her family that we have corrupted her. From what i understand she's threatening to run away.

While i do not support her moms behavior, i am very hesitant to get involved. I keep thinking of how upset i would be if family tried to involve them selves with my own home. But i want so much to help her too.

Why do people like her, the feminist type, hate traditional families so much. I know its not all of them, but a lot seem to.

Updates
7 mo
cupcake as usual your comment is gone. Calling my way of life puritan? idiotic.
Do feminists hate traditional wives? I hope not?
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