yeah, I think this will escalate further and US might drop a tactical one on some island (military but not heavily inhabited) as a show of power. I don't see a way back out otherwise for US.
Normally yes, but this is the Suez canal moment for US. I think countries stopped caring about US especially in the last year and starting reducing dependence on US economically and politically. So, the unpredictable Trump may try to do something dramatic. China will be the biggest winner of this all.
The world sentiment is to deintegrate with the US - something Trump campaigned on - and so he is going to do something dramatic? And that dramatic thing is to use nuclear weapons?
I think they will settle that Iran won’t reuse whatever they have of that nuclear fuel if the U.S drops the nukes on the Iranian nuclear sites. Iran may also think twice before rejecting a deal in which they agree to not acquire a nuclear weapon.