Sorry, just to clarify, do you mean European Jewish refugees still in Europe or those who had already made it to Israel? Or perhaps European Jewish refugees in other countries, like America?

In other words, are you thinking of someone like Menachem Begin who fled to Palestine during the war, someone like, oh, I dunno, Victor Klemperer who I suppose wasn't a refugee as he never left Germany, or someone like Albert Einstein...or?

Of the Jews remaining in Europe, huge numbers made migrated to the new state of Israel, which is probably a pretty strong indication as to how they felt, and American Jewish support for the new state was very strong. It's not entirely possible to generalize, however.