How would the world react? Let's say Israel launches a ground offensive. They indiscriminately kills thousands of civilians by pounding them to rubble, shooting them and using them as human shields like in 2014.
Would anyone stop them from comitting genocide?
Ik after the hospital massacre with Biden's acceptance of israeli propaganda, the US and West will give the greenlight, so no real opposition will foment in Israel's genocide there.
But what about the Arab World? Protests have broken out everywhere. People are outraged. Jordan cancelled their summit with Biden. Egypt can't afford to hold those refugees and blames Israel. They all do. Surely one Arab state will go to war to protect Palestinians, or their people will force them to?
What about Iran, Hezbollah, and the rest of the Axis of Resistance? They're really the only ones who pledged to support Hamas. Will they intervene? And even if they do, will America's might annihilate them, as they already threatened them with their fleet?
Most in the west would cheer it on, the halls of power and media would spin it so the Palestinians were wholly responsible for their own genocide and any atrocities later discovered. The global south will look on in horror, the Arab world will be furious and I expect massive riots, maybe Israeli embassies being stormed or destroyed, same with US. There will be terror attack reprisals against the west in the coming years but I expect even the Arab world will have to let it go and go back to their lives. The anger will cool, their leaders will in time try and inch closer again with the west after some empty placations.
It represents a shift though, the global south, many people and even leaders will see the US/NATO order for what it is, will see the hypocrisy and will choose China/Russia/BRICS+. Though given stuff like this has happened before in terms of the NATO order showing its hypocrisy and brutality I don't think it will have long-term ramifications. I think the political calculations based off it run cold after a decade at most and beyond that are reliant on more recent factors and happenings in the future.
Iran would probably like to respond but on their own they'd probably eat Israeli nukes and or at least a joint US/Israeli invasion and bombing campaign that destroys them as a regional power or player. Admittedly I doubt nuclear weapons will be used because they might draw a stronger response from even Sunni majority countries. But goodness knows deranged neo-con hawks in the US have been wanting to invade and destroy Iran since at least the 2000s so they'd jump on that chance and Israel also wants it gone but doesn't want to go it alone.
Quite frankly I wouldn't be shocked if Israel pulled a USS Liberty 2.0 on an American ship and jointly agreed with the US that it was Iran who did it to put the US into a war with them. Biden may not consent to them doing it if forewarned but if they did it I believe he'd do what he could to cover it up and blame an enemy state as he is pathetically unwilling to say no to them.