You said there is no universally accepted definition of terrorism. So let me use the official definition from the United States government.
The US State Department definition under 22 USC 2656f(d) defines terrorism as "premeditated, politically motivated violence perpetrated against noncombatant targets by subnational groups or clandestine agents." [1]
The US domestic terrorism statute under 18 USC 2331(5) defines it as activities that "appear to be intended to intimidate or coerce a civilian population." [2]
You say there is no universally accepted definition of terrorism, then said nothing to explain how you applied the term with such confidence to the Iranian government in your original post. By your own admission, you invoked a contested label selectively against one state while exempting another. That is a political preference dressed up as a principled argument, not anything of rigorous analysis.
Now apply that to Gaza. The same UN Commission found that Israel deliberately targeted civilians, deliberately destroyed healthcare and education infrastructure, imposed starvation conditions, and directly targeted children. That is premeditated. It is politically motivated. It is violence against noncombatants. By the U.S. government's definition, it fits.
On Greater Israel, calling it "vague" does not explain away the fact that sitting members of the current Israeli government have explicitly stated their intent to annex Palestinian territory.
Finance Minister Bezalel Smotrich said at a Jerusalem Day rally four days ago: "The time has come to finally erase the lines that separate Areas A, B, and C. The entire Land of Israel is ours." He also declared the war "must end with the expansion of the borders of the State of Israel" and called on Netanyahu to order the IDF to prepare for "full occupation of the Gaza Strip" and establish Israeli settlements there. [3]
National Security Minister Itamar Ben Gvir stated from the Temple Mount: "Conquer all of Gaza, declare sovereignty over the entire Strip, eliminate every Hamas member, and encourage voluntary emigration. This is the only way." [4]
These are not fringe backbenchers. These are cabinet ministers in the current Israeli government. This is declared policy, not a vague expression.
You still have not answered why Israel is allowed to have nuclear weapons.
[0] https://www.ohchr.org/en/press-releases/2025/09/israel-has-c... [1] https://www.law.cornell.edu/uscode/text/22/2656f [2] https://www.law.cornell.edu/uscode/text/18/part-I/chapter-11... [3] https://www.jpost.com/israel-news/article-896309 [4] https://www.timesofisrael.com/liveblog_entry/on-temple-mount...