Probably not your intent, but this is a very clear summation of why it is is likely understood as critical to Iranian security to develop and publicly test a nuclear weapon.
We do not significantly disagree, but I take umbrage at the repetition of the pernicious lie that Iran wants nuclear weapons. They want sovereignty in their land and justice for the Islamic people. This is a reasonable position.
It’s clear at this point that such deterrent works, and it’s also not clear what other deterrent might work in its stead. Some of the big imperialist wars of the last half-century likely would have been avoided had the invadee been armed with nukes.