To answer that, we first have to go back in history to see how Israel came into existence and whether it has a right to exist.
Israel/Palestine
In 1947, a United Nations General Assembly resolution provided for the creation of an “Arab State” and a “Jewish State” to exist within Palestine in the United Nations Partition Plan for Palestine. The Jewish Agency, precursor to the Israeli government, agreed to the plan, but the Palestinians rejected it and fighting broke out. After Israel’s 14 May 1948 unilateral declaration of independence, support from neighboring Arab states escalated the 1947–48 Civil War in Mandatory Palestine into the 1948 Arab-Israeli War. The legal and territorial status of Israel and Palestine is still hotly disputed in the region and within the international community.
According to Ilan Pappé, Arab recognition of Israel’s right to exist was part of Folke Bernadotte’s 1948 peace plan.[9] The Arab states gave this as their reason to reject the plan.[9] In the 1950s UK MP Herbert Morrison cited then Egyptian President Gamal Abdel Nasser as saying “Israel is an artificial State which must disappear.”[10] The issue was described as the central one between Israel and the Arabs.[11]
After the June 1967 war, Egyptian spokesman Mohammed H. el-Zayyat stated that Cairo had accepted Israel’s right to exist since the signing of the Egyptian-Israeli armistice in 1949.[12] He added that this did not imply recognition of Israel.[12] In September, the Arab leaders adopted a hardline “three nos” position in the Khartoum Resolution: No peace with Israel, no recognition of Israel, and no negotiations with Israel.[13] But In November, Egypt accepted UN Security Council Resolution 242, which implied acceptance of Israel’s right to exist. At the same time, Nasser urged Yasser Arafat and other Palestinian leaders to reject the resolution. “You must be our irresponsible arm,” he said.[14] King Hussein of Jordan also acknowledged that Israel had a right to exist at this time.[15] Meanwhile, Syria rejected Resolution 242, saying that it, “refers to Israel’s right to exist and it ignores the right of the [Palestinian] refugees to return to their homes.”[16]
Upon assuming the premiership in 1977, Menachem Begin spoke as follows: Our right to exist—have you ever heard of such a thing? Would it enter the mind of any Briton or Frenchman, Belgian or Dutchman, Hungarian or Bulgarian, Russian or American, to request for its people recognition of its right to exist? … Mr. Speaker: From the Knesset of Israel, I say to the world, our very existence per se is our right to exist
As reported by The New York Times, in 1988 Yasser Arafat declared that the Palestinians accepted United Nations Security Council Resolutions 242 and 338, which would guarantee “the right to exist in peace and security for all”. [18] In June 2009, US president Barack Obama said “Israelis must acknowledge that just as Israel’s right to exist cannot be denied, neither can Palestine’s.”[19]
In 1993, there was an official exchange of letters between Israeli Prime Minister Yitzhak Rabin and chairman Arafat, in which Arafat declared that “the PLO affirms that those articles of the Palestinian Covenant which deny Israel’s right to exist, and the provisions of the Covenant which are inconsistent with the commitments of this letter are now inoperative and no longer valid.”[20]
In 2009 Prime Minister Ehud Olmert demanded the Palestinian Authority’s acceptance of Israel’s right to exist as a Jewish state, which the Palestinian Authority rejected.[21] The Knesset plenum gave initial approval in May 2009 to a bill criminalising the public denial of Israel’s right to exist as a Jewish state, with a penalty of up to a year in prison.[22] In 2011 Palestinian President Mahmoud Abbas said in a speech to the Dutch Parliament that the Palestinian people recognise Israel’s right to exist and they hope the Israeli government will respond by “recognizing the Palestinian state on the borders of the land occupied in 1967.”[23]
Israeli government ministers Naftali Bennett and Danny Danon have repeatedly rejected the creation of a Palestinian state, with Bennett stating “I will do everything in my power to make sure they never get a state.”[24][25] In June 2016 a poll showed that only 4 out of 20 Israeli ministers accepted the state of Palestine’s right to exist.[26]
John V. Whitbeck argued that Israel’s insistence on a right to exist f___es Palestinians to provide a moral justification for their own suffering.[27] Noam Chomsky has argued that no state has the right to exist, that the concept was invented in the 1970s, and that Israel’s right to exist cannot be accepted by the Palestinians.[28]
International law scholar Anthony Carty observed in 2013 that “the question whether Israel has a legal right to exist might appear to be one of the most emotively charged in the vocabulary of international law and politics. It evokes immediately the ‘exterminationist’ rhetoric of numerous Arab and Islamic politicians and ideologues, not least the present President of Iran.”[29]
so yes, there are two sides of the history, but does Israel has a right to Exist?
Yes!
it should have been the safe place for them after the persecution of Jews in western Europe between the 1900 and 1945 aera
there is no real place in the world that they are completely safe for the Jews, thats why Isreal has to be what it is…
And YES, they have every right to defend their homeland against any form of terrorist.
sure there are a lot of things that went wrong, but it is all born from fear of losing the m____rland