Netanjahu is old and wants to secure his 'legacy' by being credited for dismantling Iran, knowing Trump will back him both because he's been fed BS and because the Israelis have enough kompromat to sink him. There's no 'rational' justification for this attack, only madness and huge egos.
What kompromat would even affect Trump at this point? He's been proven to be deep in bed with a literal pedophilic cabal of elites, what on Earth else could they have on this guy that would affect anything?