That's a misconception. Israel somewhat supported islamists in the Gaza Strip in the 1980s because they seemed harmles and to counter the PLO. However, that was before the Intifada started, and hence before Hamas was created.
In retrospect, no. Recall that up until the mid 1980s, the Fatah was an active terrorist organization. Other secular organizations (e.g. the Popular Front) never gave up terrorism.
But Israel did negotiate the Oslo Accords less than a decade later with the PLO.
Neither Fatah, nor the PFLP, not even Hamas are "terrorists". They are national liberation movements and their violence is sanctioned by their right to fight colonial occupation.
Now, answer me, who broke the Oslo accords? Who undermined Fatah's credibility by doing so? Who murdered Yasser Arafat?
Sure, so planed hijacked by Black September Organization (a front for Fatah) were acts of freedom? Passengers were freed by the freedom fighters from the air crew?
Leila Khaled, seen in this picture, is one of those freedom fighters. She was part of one successful and one failed such hijack.
I'm not sure I understand the question. There are very few people in Israeli prisons since before 1990 ("before Hamas was a thing").
Israel was close to reach an agreement with the gevernment of the Palestinian Authority in 2008. But then Netanyahu came. Now both sides are more in blame-game mode.
How many times has Netanyahu specifically stated that he is against a two-state solution or any existence of a Palestinian state "in any post-war scenario", and that there can be no "safety" for Israel so long as Palestine exists on its borders?
There is no question that Israel does not want peace, and will jeopardize any attempt at it.
There can be no peace as long as the doctrine of Jihad remains in effect. Gaza is living proof that any Palestinian state would only be used as a base from which to attack Israel.
There was no agreement close to being made in 2008. Not only was that offer rejected, but PA leadership never even made a counter offer. Besides, Jihadists are notorious for breaking treaties.
Yes, and Arafat was telling Arab nations right after the Accords that the agreement was only a temporary means to an end. He never had any intention of making peace. He was simply changing his tactics.