Since Iran started testing those capabilities and creating the required Uranium, the argument of "peaceful use" is obviously a lie.
Wrong.
There is no evidence of Iran testing these capabilities.
The enrichment is absolutely linked to proliferation.
No it is not.
In fact, in the next paragraph you argue that Iran is in his right to get nukes. You should try to make sense with yourself.
I'm not sure which part of this very obvious matter doesn't make sense to you.
uranium particles of anthropogenic origin at several undeclared locations in Iran
Let me translate that for you.
I accuse you to having stolen my money in 2000 and we go to court and you prove that you haven't and court votes in your favor.
A couple of years later in 2010 I accuse you again of having stolen my money in 2000 and bring you to court.
A couple of years later in 2020 I accuse you again of having stolen my money in 2000 and bring you to court....
At some point you have to ask why is the legal system broken!
That's what's happening here. Decades ago, Israeli terrorists who own weapons of mass murder and do not answer to any international organization including UN, IAEA and are not member of NPT told IAEA that Iran has been enriching Uranium in 3 locations. If my memory serves one of those locations were like a cow farm

IAEA agents came and Iran explained and it was over. Then in later years the Western politicians kept bringing that up over and over referring to the report by the Israeli terrorists!
What you quoted here is the policical statement made by a man who is begging Trump to help him become UN Secretary-General!
And it is in complete contradiction with dozens of previous IAEA reports! You may want to read those too.
You are an absolute hypocrite and that is why you fit perfectly in your role. The only reason the Ayatolahs want nukes is to preserve THE REGIME. Once they get these weapons, it is immensely more risky to allow a revolution or a regime change. This has never been about Iran, it is always about the Ayatolah's regime.
Your familiar silly language reminded me of your past statements of another so called "regime" in Syria while you were celebrating revival of ISIS terrorists.
I'm sure you never cared to follow that up and read how US regime basically confessed to having lied about everything from "Assad being a dictator" all the way to "fighting ISIS" when they said they started all that to just overthrow a democratically elected government and they were supporting al-Qaeda and other terrorist groups in Syria

No wonder you are saying the same silly things. Your sources are the same mouthpieces who support the Israeli terrorists and the genocide that is being carried out in Gaza. Obviously anybody who fights these terrorists has to be demonized, therefore your weird language and usage of keywords like "ayuatolahs" and "REGIME"

You gotta change the mouthpieces you follow dude...
Ok, so you admit that your statement about Iran collaborating is effective false... BUT Iran was not trying to test nuclear weapons...
You see, the problem of lying - I am not sure if you simply do not know or you are simply lying - is that it is easy to catch.
Well, you are lying, it is precisely the IAEA that you cite as source that says as early as 2011:
https://www.iranwatch.org/our-publications/weapon-program-background-report/history-irans-nuclear-program#Weaponization%20Efforts%20and%20Undeclared%20SitesThe 2011 report contained detailed information about Iran’s effort to develop a nuclear weapon, including:
computer modeling of implosion, compression, and nuclear yield, as recently as 2009;
high explosive tests simulating a nuclear explosion but using non-nuclear material in order to see whether an implosion device would work;
the construction of at least one containment vessel at a military site, in which to conduct such high explosive tests;
studies on detonation of high explosive charges, in order to ensure uniform compression in an implosion device, including at least one large scale experiment in 2003, and experimental research after 2003;
support from a foreign expert, reportedly a former Soviet weapon scientist named Vyacheslav Danilenko, in developing a detonation system suitable for nuclear weapons and a diagnostic system needed to monitor the detonation experiments;
manufacture of a neutron initiator, which is placed in the core of an implosion device and, when compressed, generates neutrons to start a nuclear chain reaction, along with validation studies on the initiator design from 2006 onward;
the development of exploding bridgewire detonators (EBWs) used in simultaneous detonation, which are needed to initiate an implosive shock wave in fission bombs;
the development of high voltage firing equipment that would enable detonation in the air, above a target, in a fashion only making sense for a nuclear payload;
testing of high voltage firing equipment to ensure that it could fire EBWs over the long distance needed for nuclear weapon testing, when a device might be located down a deep shaft;
a program to integrate a new spherical payload onto Iran’s Shahab-3 missile, enabling the missile to accommodate the detonation package described above.
Comm'on, keep lying. The evidence going to be embarrasing.