At the very least, she needs a good talking-to.
Her idiotic position that the Israeli Jews should go back to Germany, Poland, and America was pointless and ill-considered, and reminded me of some Americans who propose that blacks go back to Africa.
Like it or not, the Israel "bell" can't be un-rung. I happen to think that its creation was a big mistake, but I'm not calling for its removal. A Palestinian state will be created as soon as America has the political will to make it happen. They need us, and we have the ability to make it a reality.
"They should not, do we now not permit freedom of speech in the U.S."
We do, but tell that to Trent Lott, who lost his Senate leadership position after saying that we all should have listened to Strom Thurmond. There are some statements that have negative consequences for the speaker, and which indicate a serious lack of judgment on their parts that can lead to loss of standing.