Here is the deal. Much like the tithe, God has made certain promises surrounding the Nation of Israel...
“There are two key passages in the Bible where God promises to bless those who support Israel and to curse those who do not. The first one is found in Gen. 12:2-3. God is speaking to Abraham when He says the following:
And I will make you a great nation,
And I will bless you,
And make your name great;
And so you shall be a blessing;
And I will bless those who bless you,
And the one who curses you I will curse.
And in you all the families of the earth will be blessed.” (NASB) Gen. 12:2-3
God promises to make Abraham’s descendants a great nation, and He promises to bless them. But anyone who seeks to harm them will be cursed. This is the reason to support Israel. Any nation in the world who seeks to harm Israel will find God’s wrath upon it. God’s wrath will come when He chooses. For some it will not occur until the end of the world (Rev. 18:1-2,24; 20:11-15). The second key passage is found in Gen. 27:29. It has the same idea of Genesis 12:2-3.”
For unbelievers, it doesn’t really matter what they think about it, they are cursed anyway. But for the Nation and people that believe God, it is promise. Do you want to be blessed by God, or cursed?
The former, and I hope you read the article.