(1) Israel does not have the aerial practical capability/capacity to drop GBU-28/37 MOPs (2300Kg/5000Kg), nor prototype, not yet certified in US Service, GBU-57A/Bs MOPs(14,000Kg) in practice re(2), especially in timed sequenced precision drops, total 85,000Kg.
(2) It is known that a timed precise sequence of ~16-18 alternating probable GBU-10(MK84 PavewayII blast effect(972Kg)) bombs, & at least GBU-37 MOPs, though quite likely, prototype GBU-57A/Bs, ~85,000Kg worth, were used to assassinate Nasrallah & Hezbollah leadership in Sth Beirut suburbs (Haddiyeh(?). Followed by a duplicate further decapitation strike days later re Hezbollah.
(3) This requires strategic bombers which Israel does NOT posses. US does, both the bombers & unique ordnance & capability, as demonstrated re Yemen/Ansar Allah. Open Source B2 spec is lowball 18,144Kg up to 22680Kg, therefore 4, at most 5 B2, in a flight, required to execute the ops, plus, necessity of, stealth CAP escorts.
(4) Therefore the Hezbollah decapitation strikes in Beirut, and mass non-combatant resultant causalities were a direct consequence of US direct belligerence alongside/in support of Israel.
