I must reject that answer because the LORD warned 3-4 generations - the maximum lifetime of those participating in the rejection, & who endorsed their parents' actions, rather than repenting.
Vast numbers of Jews did indeed welcome their Messiah, including those responding to John (baptist), Jesus during his ministry, those responding to the Apostolic Gospel which went out to "every nation under heaven", the dispersed Jews who were the first when Paul & others preached. That vast number were identified variously as "Christians," "the Way" & various local churches. They did not identify themselves as continuing Jews. They were indeed the "Holy Nation" the Nation
God is a God of justice & any failure to protect & preserve his chosen people AS HIS PEOPLE would be seen by unbelievers as a failure on his part, as Moses pointed out -
Exo. 32:9 And the LORD said to Moses, “I have seen this people, and indeed it is a stiff-necked people! 10 Now therefore, let Me alone, that My wrath may burn hot against them and I may consume them. And I will make of you a great nation.”
11 Then Moses pleaded with the LORD his God, and said: “LORD, why does Your wrath burn hot against Your people whom You have brought out of the land of Egypt with great power and with a mighty hand? 12 Why should the Egyptians speak, and say, ‘He brought them out to harm them, to kill them in the mountains, and to consume them from the face of the earth’? Turn from Your fierce wrath, and relent from this harm to Your people. 13 Remember Abraham, Isaac, and Israel, Your servants, to whom You swore by Your own self, and said to them, ‘I will multiply your descendants as the stars of heaven; and all this land that I have spoken of I give to your descendants, and they shall inherit it forever.’ ”[fn] 14 So the LORD relented from the harm which He said He would do to His people.
Mat 21:43 “Therefore I say to you, the kingdom of God will be taken from you and given to a nation bearing the fruits of it.
44 “And whoever falls on this stone will be broken; but on whomever it falls, it will grind him to powder.”
45 Now when the chief priests and Pharisees heard His parables, they perceived that He was speaking of them. 46 But when they sought to lay hands on Him, they feared the multitudes, because they took Him for a prophet.
Those who persisted in their rejection of their Messiah perished as prophesied. THose who believed formed the continuing Holy Nation, bearing fruits for Messiah's glory.
IMO those Jews who continue to reject the Gospel are simply a people group holding to the religious elements of Judaism. As far as we are concerned the are a people potentially for whom Christ lived & died, welcomed by the Gospel, but not denied the Gospel nor kept in unbelief because of the actions of the Jews of Jesus' time.
As far as the church & the nations of the world, they should be free to worship as they please without fear or favour. They certainly should NOT be given Christian support in their conquest & oppression of Palestine & the people living there. THAT is ongoing persecution for which God will judge.
Today's Jews are the descendants of the Jews that lived during Roman times. And while many DID believe jesus then, the majority did NOT. After all, WHO HAD HIM KILLED ?
While today's Jews are of mixed ancestry, their main bloodline is Jewish. And the Palestinians are largely descendants of the Philistines, Israel's old enemy, while many others of them are largely of Arab (Ishmaelite) descent, another traditional enemy of Israel. Trying to mix them is as mixing baking soda & vinegar.
The 'beast' will win the world's admiration by brokering a peace treaty that'll cause both sides to disarm, & Israel will become "a land of unwalled villages".
No, GOD is far-from-done with Judah & Israel !