History disagrees with you, and Iran is the #1 state sponsor of terrorism. They were even providing Russia with arms for their invasion of Ukraine. Let's not equate them with many others, such as Poland, etc. Iran absolutely should not be allowed under any circumstances to have a nuclear weapon. If they were as close as what intelligence seems to indicate (though I know that's hard to believe after the Iraq war, but we aren't in a ground war so the burden of proof is understandably less) then I frankly don't think it would have mattered if it were Kamala, Biden, or Trump in office. The facilities were getting bombed.

The scenario was already war gamed during the Biden administration, it was already a possible outcome. The G7 already backed this idea that Iran can't have this before, and they'll do it again. The US doesn't stand alone on this, Saudi Arabia and basically everyone in the region and world doesn't want Iran having a nuke sans Russia/China. I'm not even sure if Russia/China really want it either. It's just common sense.

This is absolutely the case. We've been collectively fighting to stop Iran from getting nukes for decades. In much of the middle east, Iran is considered a serious enemy. Iran getting nuclear weapons would mean the rest of the middle east would instantly feel compelled to get their own.