I do not understand what folks find objectionable about this claim? (Other than it may not fit with their interpretation of the images and symbols in the book of Revelation).
In the OT God repeatedly refers to Israel as a harlot (aka whore):
32 They angered Him also at the waters of strife, So that it went ill with Moses on account of them;Are those usages of harlot/whore offensive to you?
33 Because they rebelled against His Spirit, So that he spoke rashly with his lips.
34 They did not destroy the peoples, Concerning whom the Lord had commanded them,
35 But they mingled with the Gentiles And learned their works;
36 They served their idols, Which became a snare to them.
37 They even sacrificed their sons And their daughters to demons,
38 And shed innocent blood, The blood of their sons and daughters, Whom they sacrificed to the idols of Canaan; And the land was polluted with blood.
39 Thus they were defiled by their own works, And played the harlot by their own deeds.
40 Therefore the wrath of the Lord was kindled against His people, So that He abhorred His own inheritance. (Psalm 106)20 But if you refuse and rebel, You shall be devoured by the sword"; For the mouth of the Lord has spoken.
21 How the faithful city has become a harlot! It was full of justice; Righteousness lodged in it, But now murderers.
22 Your silver has become dross, Your wine mixed with water.
23 Your princes are rebellious, And companions of thieves; Everyone loves bribes, And follows after rewards. They do not defend the fatherless, Nor does the cause of the widow come before them. (Isa. 1)30 I will do these things to you because you have gone as a harlot after the Gentiles, because you have become defiled by their idols. (Ezek. 23)
If (and I realize folks disagree) the words of Revelation are related to the unfaithfulness of Jerusalem in the first century, then how is the phrase “whore Jerusalem” offensive?
8 And another angel followed, saying, "Babylon is fallen, is fallen, that great city, because she has made all nations drink of the wine of the wrath of her fornication." (Rev. 14)1 Then one of the seven angels who had the seven bowls came and talked with me, saying to me, "Come, I will show you the judgment of the great harlot who sits on many waters,
18 And the woman whom you saw is that great city which reigns over the kings of the earth." (Rev. 17)8 And their dead bodies will lie in the street of the great city which spiritually is called Sodom and Egypt, where also our Lord was crucified. (Rev. 11)
6 For thus says the Lord to the house of the king of Judah: "You are Gilead to Me, The head of Lebanon; Yet I surely will make you a wilderness, Cities which are not inhabited.
7 I will prepare destroyers against you, Everyone with his weapons; They shall cut down your choice cedars And cast them into the fire.
8 And many nations will pass by this city; and everyone will say to his neighbor, 'Why has the Lord done so to this great city?'
9 Then they will answer, 'Because they have forsaken the covenant of the Lord their God, and worshiped other gods and served them.' " (Jer. 22)
Your hermeneutical error is that you have not read the end of the story (check the location of your proof-text passages: Psalms, Is, Ezek.). The passage from John's revelation of Jesus Christ refers to Babylon, not Israel.
Now, no question Israel is presently both hard-headed & hard-hearted. However, according to Paul (Rom.) the day is coming when God will impose upon Israel a softened heart and ears to hear. Something like Jer. 23. But, the form that will take is cloudy. However, anyone who believes their eschatological system is bullet-proof is kidding themselves.
For God to chastise his earthly people, even wrathfully, harshly does not give us the right to follow suit. You are not the offended party and you need to tread lightly when it comes to the true legacy, the destiny Yahweh has in store for those who were given the Law and from whom sprung the physical form of the Root of Jesse. We reach to them, especially them, because we are the benefactors of that role. It is not hyper-Zionism nor a an unthinking bias. It is a thoughtful consideration for their pivotal role in history of redemption and our hope that we might be a part of their repentance.
Any believer who pounds his fist on the table and says, "They are beyond hope!" has not come to grips with his own Total Depravity. May I suggest Sam Storms book Chosen for Life? It is not perfect, but it is extremely insightful.