I'm not a liberal, I'm a conservative but that seems all you got.... however, you want to argue with a scientist on such matters. That's not wise....
I gave facts above. Currently Iran only has enriched uranium at around 5% and needs to enrich that above 90% and make around 37kg for a viable nuclear device. (That's not easy, if it was many more countries would have nukes).
So to enrich to that sort of purity, (as I've said before not easy) you need many, many high tech centrifuges, not the sort you find in a school chemistry lab. Iran just doesn't have anywhere near enough and it would take them years and lots of money to procure or develop them. So what Trump is saying and Bolton is just nonsense but then again Trump thought the Americans captured the airports in 1776, so you can't expect much from his puny brain.
So lets say in 10 years Iran develop a nuke and can set it off in Israel, (which they won't, you know nothing of ME politics), NATO does not have to respond because Israel is not in NATO. There would be a response of course, but it's all hypothetical, the same a China nuking Japan. Remember, only one country has ever used nukes on civilian targets, so the moral high ground is not theirs.
I feel sorry that America robs you of a proper education and being able to critically think for yourself. To see America slide into worshiping ignorance is sad.