I wouldn't consider it the dominant Protestant view at all. Maybe amongst Evangelicals ( a subset of Protestants). Even amongst Evangelicals I doubt such literal Millinialist views as expressed in Left Behind are the overwhelmingly majority.
You would likely be mistaken. An overt goal of pro-Israel fundraising by Evangelical groups is to accelerate population of the Holy Land (Levant) by the Jews in order to fulfill end-of-days prophesy [1].
Does anyone have any information whether this viewpoint was significant in the early U.S. foreign aid support of Israel (1930-1970)? I am uneducated in this segment of U.S. history.