Russia would not have invaded Ukraine if Ukraine has nukes. The US would not have dismantled Iraq, Afghanistan, and now Iran if they had nukes.
You look at a country like North Korea and they get the red carpet despite have an incredibly oppressive regime and spending millions on cyber attacks and corporate espionaige. You know why? Because they have nukes.
It's not a question of "trusting" Iran. Iran with nukes is more geopolitically stable situation than Iran without nukes. As it stands today, Iran without nukes, means that Lockheed Martin gets to fleece another 10 trillion dollars from the American public for the next decade.