Your argument for allowing Iran to hold nuclear capabilities is a ridiculous one.
The only non-Western state to hold nuclear capabilities is Pakistan, and it isn't led by Islamic fundamentalism. I'm not for Pakistan having nukes to begin with and just like you I would get rid of all of them if I could, but we have to deal with what's happening in the present and at the present Pakistan has nuclear capabilities like the UK, the US and other states. That doesn't mean that states like Iran and North Korea - states that are rogue and hostile and promote dark agendas, states that are yet to gain nuclear capabilities - should be allowed to gain nuclear capabilities. They shouldn't. The argument that because some have nuclear capabilities then everyone should have it is a ridiculous argument. The argument that is comparing Iran to the US of over 70 years ago is a desperate argument.