You do understand the definition of "realistic", right?
"Realistic" means what can be expected to happen under a normal situation, under the laws of nature. The 1967 victory of Israel over the Arabs was about as unrealistic as you can get. That is how we know it's a miracle. Do you really think the IDF of that era, which numbered something like 20,000 trained front-line soldiers tops, truly defeated five combined Arab nations with the most modern Soviet equipment, training, and advisors by its own might?
We are not allowed to expect miracles, rely on them, or demand them. That is central to Judaism, Noahidism, and Christianity. We can ask for them humbly while simultaneously working as hard as we can but if we expect or demand them to happen, that is really mocking G-d. So to that end I'll not just agree with Hot Spot, but state that without G-d's intervention, 5 million Jews defeating 2 billion Muslims isn't just unrealistic, but impossible.