The bombings are an act of war, so Trump's already dragged the US into a war with Iran at this point, despite the spin about being "at war with Iran's nuclear programme but not Iran itself"
I doubt Iran are that worried about the Americans starting a ground invasion either, it would be an absolute bloodbath and will have MAGA and non-MAGA everywhere calling for Trump's head.
Nothing will change until western politicians that take donations from Israel are in fear of their lives from angry constituents. You can protest peacefully until you're blue in the face, if the ultra rich and their puppets are in no danger of being dragged out of their homes by an angry population then they don't give a fuck.