I don't know. I think Shakespeare sets the play up in a way that by the time Hamlet rages on his mother we already feel sympathetic toward him and the cards he's been dealt. He's been asked by the ghost of his father the king to avenge his murder and we're on his side. His mother acts as though there is nothing wrong with remarrying before her husband's body is cold in the grave and not just remarrying anyone, but remarrying her husband's brother at that! I think I would share in his disgust and revulsion! On the other hand Hamlet is privy to more information than his mother and so while we feel for Hamlet, she really might not be deserving of his harsh judgments, after-all she is unaware of the fact that her husband was murdered (at least we hope she is!).