Well, despite your finally posting a source, your source still does not support your contention that "Kingdom of God" is synonymous with Israel. You stopped short of "Accordingly, says the Midrash (Cant. R. ii. 12), "when the Kingdom of Rome has ripened enough to be destroyed, the Kingdom of God will appear."
Israel had been around for a few centuries before the "Kingdom of Rome"(king of Rome?).
Are you sitll in denial?