If we shut her up for saying something that we don't like or agree with (regardless how outrageous), we can't complain when they shut us up for saying things they don't like or agree with (regardless how accurate).
Besides, let them rant. It just exposes them for the angry radicals they really are. Let America see the real face of the White House Press Corps. The more the better.
If Helen had said “ the blacks should go back to Africa” would the comment be the same?