It's bad to think there's a way all feminists look.
Harry was told by his dad that all feminists look the same.
Harry wants to think about what his dad said.
Harry considers his dad's words and realizes that unless feminists have a dress code they all don't dress the same.
Harry just assumes that anything daddy says is true.
Harry starts wondering if his father was wrong about other races too.
Harry assumes that anyone wearing the clothes his dad pointed out is a feminist.