One consequence of this war will be that antisemitism will flare up in the USA. Right wingers are already saying that whatever happens in the end, and they seem to imply it will be bad, it will not be trumps fault. It was the Jews. See for instance Joe Kent, who resigned as national counter-terrorism center director because (the following quotes are from a Xit directly addressing his hero):
“Iran posed no imminent threat to our nation, and it is clear that we started this war due to pressure from Israel and its powerful American lobby.”
“Early in this administration, high-ranking Israeli officials and influential members of the American media deployed a misinformation campaign that wholly undermined your America First platform and sowed pro-war sentiments to encourage a war with Iran”
“This echo chamber was used to deceive you into believing that Iran posed an imminent threat to the United States, and you should strike now, there was a clear path to a swift victory."
“This was a lie and is the same tactic the Israelis used to draw us into the disastrous Iraq war that cost our nation the lives of thousands of our best men and women. We cannot make this mistake again.”
Make antisemitism mainstream again! (MAMA!)
It seems to me that this will weaken Israel’s position in the future. MAGA will blame Israel (meaning the Jews, all of them) for trump’s problems, the Democrats will blame Israel for supporting trump. Bipartisan support for Israel will no longer be. Even Germany will show less good will towards Israel in the future.