why christians think god help israel?

Because He always has helped Israel, and always will. It is the fulfillment of the Abrahamic Covenant of Genesis 12.

So as to protect them from Muslims.

If it is just a thought, what do you care, asssshole ?

You obviously think He does noT

Because God has always helped Israel.

He does help Israel.

Because the bible makes it clear in dozens of different scriptures that he protects Israel....both Old and New Testaments

Genesis 12:3

I will bless those who bless you, and him who dishonors you I will curse, and in you all the families of the earth shall be blessed.”

Romans 11:1-36

I ask, then, has God rejected his people? By no means! For I myself am an Israelite, a descendant of Abraham, a member of the tribe of Benjamin. God has not rejected his people whom he foreknew. Do you not know what the Scripture says of Elijah, how he appeals to God against Israel? “Lord, they have killed your prophets, they have demolished your altars, and I alone am left, and they seek my life.” But what is God's reply to him? “I have kept for myself seven thousand men who have not bowed the knee to Baal.” So too at the present time there is a remnant, chosen by grace. ...

Joel 3:1-3

“For behold, in those days and at that time, when I restore the fortunes of Judah and Jerusalem, I will gather all the nations and bring them down to the Valley of Jehoshaphat. And I will enter into judgment with them there, on behalf of my people and my heritage Israel, because they have scattered them among the nations and have divided up my land, and have cast lots for my people, and have traded a boy for a prostitute, and have sold a girl for wine and have drunk it.

Genesis 12:1-3

Now the Lord said to Abram, “Go from your country and your kindred and your father's house to the land that I will show you. And I will make of you a great nation, and I will bless you and make your name great, so that you will be a blessing. I will bless those who bless you, and him who dishonors you I will curse, and in you all the families of the earth shall be blessed

Ezekiel 38:1-39:29

The word of the Lord came to me: “Son of man, set your face toward Gog, of the land of Magog, the chief prince of Meshech and Tubal, and prophesy against him and say, Thus says the Lord God: Behold, I am against you, O Gog, chief prince of Meshech and Tubal. And I will turn you about and put hooks into your jaws, and I will bring you out, and all your army, horses and horsemen, all of them clothed in full armor, a great host, all of them with buckler and shield, wielding swords. Persia, Cush, and Put are with them, all of them with shield and helmet; ...

Isaiah 41:11-12

Behold, all who are incensed against you shall be put to shame and confounded; those who strive against you shall be as nothing and shall perish. You shall seek those who contend with you, but you shall not find them; those who war against you shall be as nothing at all.

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Just to name a few.

Israel has the best weapons they can get

Well Einstein, Israel is 1/19th the size of the state of California in the U.S., yet it's been kicking A$$ on countries hundreds of times it's size. Explain that.

All Christians don’t think that God shows the country Israel any favoritism.

HE WILL WHEN HE WISHES CUZ THAT IS THE HOLY LAND.