Why do some readers find the story "A & P" offensively sexist?

From a feminist stand point, the young girls in A&P are objectified by the men in the store.   The narrator looks at them as in need of protection.  He bases this opinion on what they wear rather than who they are.  The story is told through a limited point of view, so the reader is not aware of the thoughts and beliefs of the young girls.  The reader can only see and hear what they say, thus relying on the unreliable point of view of the narrator.