They need a Martin Luther to stir things up.
I doubt very seriously that Luther would have disagreed with the Vatican on this particular issue.
American chrstians simply are not aware that "chrstian Zionism" is a relatively new position, unknown until about four hundred years ago at the very most. Historical chrstianity, whether "apostolic" or "biblical," has always been anti-Jewish and adamantly opposed to any Jewish restoration.
American chrstians should seriously consider becoming Noachides or even converting to Judaism.