The notion that the Trump regime could launch an overt attack on Iran's nuclear facilities without provoking a severe military response is grossly far-fetched.
If Iran's deterrence was lost then no, the US would not sit idle but would in effect resort to conducting direct raids on Iran's nuclear and military infrastructure. The fact that it doesn't, implies precisely that Washington is being deterred from taking such steps due to Iran's defense architecture, consisting foremost of its massive, highly survivable and largely precision-guided missile arsenal, its vast network of allied, ideologically committed armed formations spread all over the region, as well as its ability to interdict global energy supplies to a significant extent.
It is precisely these Iranian capabilities that the US and its European vassals are desperate to neutralize through negotiations, something they have miserably failed to achieve despite Trump's pressure campaign, which targets not only Iranian state institutions but also ordinary Iranian civilians on a massive scale. Trump could be in charge for another 40 years, he would fail just as pitifully. How utterly humiliating it is for the global superpower with its virtually infinite resources not to be able to bring to its knees a medium power such as Iran in over 40 years of all out confrontation.
The amount of biased extrapolations from the assassination of a retired scientist and other such peripheral operations, all of which are deprived of a significant geostrategic impact is staggering. These acts of terror offer no proof whatsover that Iran's deterrence against overt military aggression is compromised. On the contrary, it is precisely because the enemy lacks a viable and affordable military option that it has to fall back on such desperate measures.
These provocations are done in large part to support the enemy's psy-ops campaign against Iran and Iranians. And some here will join the propagandistic chorus by rehashing typical flawed talking points aimed at suggesting that Iran has been defeated, stands no chance, is going to be attacked soon etc.
I wonder if those who strike this tone would have made use of similar language to describe the US regime when the latter failed to retaliate in kind to the bombing by pro-Iranian forces of the Marines barracks in Beirut in the 1980's, or when Iran assisted Iraqi resistance groups to eliminate 600+ US occupation troops in the 2000's...
The zionist regime for its part, cannot even eradicate relatively small resistance groups like Hamas and Islamic Jihad right next door in Gaza. Its "kicks and punches" are akin to those of a hysterical, fragile female gesticulating erratically out of frustration while the real man in the room, Iran, is patiently taking these feeble little outburst with a big confident smile, knowing that beneath the hazy fog of propaganda and outward appearance, it will keep making the strategically sound moves and advancing unshakably on its principled path of anti-imperial Resistance.