Iran is a democracy!
As I've already explained in OP, this had nothing to do with nukes. And if Iran wanted to build nukes nobody could have prevent it from happening. Just like they could never prevent Iran from acquiring nuclear energy and enrichment science, air-defense, beyond advanced radars, ballistic missiles, submarines, nano technology, cloning, stem cell research, cancer treatment, medical engineering, Space program, and a million other advanced sciences they tried to prevent Iran from acquiring (by murdering the scientists as I explained in OP) and failed...
The US regime simply does not have the power to prevent any of it.
The only reason why Iran has not moved in that direction is because of Islam.According to the
fatwa of Ayatollah Khamenei (
Imam of Muslims), nuclear weapon which is considered a weapon of mass destruction is
haram.
Same situation existed back in the 1980's during Imam Khomeini time about chemical weapons during the time when the same Axis invaded Iran and was using chemical weapons against Iranians (bombing cities with it). When military commanders went to him as the "commander in chief" to get permission to acquire chemical weapons to respond to the enemy in the same manner, he did not allow it. WMDs are considered haram. And back in the 80's from a military perspective, Iran didn't really have anything but god. Today Iran has EVERYTHING and god.

The recent Iran-Israel war gives a good proof that how Iran (an isolated country) fought well with country like Israel who has full support of US and Europe. It's irony that Europe and US is so much worried about Iran intentions to acquire Nuclear weapons but they are blindfolded on Israel atrocities in GAZA for last two years. It's nothing but double standard.
There are unconfirmed news that Iran is set to buy China J10c aircraft but if that's true then Iran Air superiority will be strengthen in the region. In May this year Pakistan Air Force successfully shot down Indian air force Rafael by using J10c and PL15 missiles, that's a deadly combo.
As far as Islam and Nuclear weapons is concerned. Islam prohibits killing of innocent and unarmed people and also prohibits attacking others without any strong reason but instruct it's followers to be ready for self defence. Pakistan acquire nuclear technology only after India acquired and tested it. We were no more on earth map, if we were don't have nuclear weapons and this technology has forced India to stay outside our territory.
If USA, Israel, France, UK can acquire nuclear weapons then why not Iran can have them for self defence?