Nuclear weapons are bad no matter who has them. It doesn’t matter if it’s Iran or N. Korea or America or Pakistan or anyone else - if someone drops a nuke, we’re all boned.
Hiroshima & Nagasaki were bad, but you know what? The nukes we have today make those look like sparklers at a little kid’s birthday party. We literally have the power to wipe out not only every speck of life on the planet, but the planet itself, with nothing more than the push of a button.
You want to really do something to promote peace and freedom? Disarm. If you’re not willing to do that, then kindly stfu.