There are many views about the Gaza Strip, about the Palestinians and about Israel.
Here is Powerline looking at the question.
Before anyone suggests that I think this is the "right" view of the situation, there is no right view. That said, in one way Helen Thomas was right. Many of the people in Israel are from Germany or descendants of people from Germany. They left after 1932, when they were shoved out. Some lucky ones♠ came to the US—Billy Wilder or Bruno Walter or Otto Klemperer, for instance. (See Richard J Evans, The Coming of the Third Reich).
Others German Jews went to Palestine. Frankly, there were not a lot of nations taking in Jewish immigrants during the 1930s. The Jews in Poland didn't find themselves being pushed out by their Government during the 1930s, not until after Germany and Russia invaded Poland in 1939, and then in 1941 Germany invaded the rest of Poland.
So, why would people want to go back to a place from which they had been thrown out, or where most of their family had been murdered by direction of the Government? And if millions return to Germany and Poland and other places, who is going to guarantee that anti-Semitism won't join them there? And what will that guarantee look like?
Hat tip to Instapundit.
Regards — Cliff
♠ When I say lucky I mean that (1) this is a wonderful place for artists and (2) they got a visa when visas were not that easy to get.