Sir when you see the bigger picture, it doesn’t really matter whether Iran provides any proof or not. Iran has suffered a lot from the state terrorism of Israel with the blessings of the United States.
If we switch the table and put Israel or America in the shoes of Iran, the war would have begun years ago but it is the unbelievable control of Iran that has not lead to a war if not the World War 3.
They killed Iranian civilians including top scientists who were merely working in the technology and welfare of their country, they killed Iranian generals, bombed Iranian embassy and now killed their guest. What’s the point of providing an evidence if it means nothing as the Israel-led evil nexus is looking for a war for a long time.
They are pushing Iran to the level where they cannot hide their face and ultimately confront. Whether Israel did this terrorist activity by breaking international laws with gun., missile or explosive is irrelevant in the end.
Not that I am inclined to engage in serious debate on PDF due to the prevailing environment, I will try to make an exception this time and discuss the bigger picture as you mention. You are right that taking a broader view makes any presentation of evidence by Iranian not matter as much given that context.
Throughout the previous century, the Middle East, given its rich resources, has been a battleground for supremacy by the reigning world powers of the time from the demise of the Ottoman Empire, the demarcation of borders made by the British Empire in its dying days, and then throughout the Cold War and the aftermath of the collapse of the USSR, but let us concentrate on the record of the Iranians after the Ayatollahs rose to power, since they are ruling Iran today.
One can easily make a counter-list that presents a long series of Iranian actions that rivals the list that you mention. After all, international geopolitics is always a two-way street. Suffice to say that Iran under the Ayatollahs has sought to expand its influence in the region, and as a sovereign nation, let me make it clear that it does have the right to do so in order to serve its national interests. However, it has done it in a manner that has provided ample reasons for world powers from outside the region - and not just USA - to get involved in the power dynamics within Iran's neighbors. Without risking any deviation of the discussion into sectarianism, let me just observe that the schism within Islam runs deep and wide and affects all major Muslim countries, giving not only Iran, but all other neighboring countries, as well as all outside powers, a six-lane highway deep into the entire Middle East.
To use your own argument and switch the table, only for purposes of rational discussion if it is indeed possible by some miraculous change in PDF policy, Iran itself has tried to push just about everywhere in the region to undermine and confront all those that it sees as standing in its way of furthering its own national interests. To be fair, there is nothing wrong with that and Iran has every right to do so. But so do all the others with their own national interests.
As always, those who engage in this tussle harder and smarter will gain the upper hand, until the next round of developments, since international geopolitics is a never ending process.