If Satan and demons are not real, then Jesus is a liar. It is clear that Satan influences many people, to a greater or lesser extent. Otherwise, the world would not have murdered Jesus.
More to the point of the article: when you see large numbers of otherwise sane and rational adults all behaving in the same irrational manner, or all insisting that the same false idea is really true, or all hell-bent on doing the same irrational thing, you are seeing spiritual influence in action.
BTW: the only nation on earth who has an angel overseeing it is Israel (in its several tribes, not just Judah). All the rest of the nations have the spirit of a demon as the highest spiritual power. See Daniel 10:13 and 12:1. Jesus stated that Daniel was a prophet in Matthew 24:15.
If Jesus told the truth, then the challenge is to fully believe what that truth fully implies.
The Israel you are referring to is a bloodline (12 tribes, and also including the bloodline of Manasseh and Ephraim), not a specific point on a map.
But be of good cheer because Galatians 3:29 states that:
“And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise” (KJV)
Pretty simple, huh? And the heirs are called Israel (the bloodline) which Gal 3:29 amplifies to include, believers in Christ.