"Why do the other 60% prefer living as tolerated guests in other countries today?" (John) You surely know some of them, in your environment. I suggest you ask them. Whatever they may answer, I don't think they would tell you that their presence in your country is a indication that they do not want Israel to be a Jewish state.
Austrian chancellor: Austria and Germany will allow migrants entry (Reuters)
from the article: A Palestinian peace plan Israelis can live with