Their voters "ran them out." Yes, AIPAC supported their opponents, but they lost in open elections, largely because they did some stupid shit and lost support of a lot of people who had previously voted for them. You notice AOC and Omar didn't lose their primaries, because they're smarter politicians.
I'm sorry you don't get to wake up every day with a blowjob from Rachel McAdams and eat nothing but the finest steaks that are magically good for you too. But the way politics works in any democratic system is that various coalitions organize to elect politicians who will support policies that they like. And because the left has been utterly fucking worthless at politics for your entire lifetime (what a surprise, given how it's been made up of selfish and lazy people like you), the right has been better at politics.
That's not something that can get turned around in four years, especially when dumb motherfucking "leftists" like you actively oppose the results of progressive policies that you nominally supported. You know what really doesn't fucking help advance leftist causes? When stupid assholes like you actively oppose the president and the party's economic record after they enact what has been far and away the most progressive economic agenda since LBJ was in office, an agenda that has resulted in the strongest real wage increases (that means adjusted for inflation you economically illiterate shithead) for the working class in 50+ years. Or when stupid assholes like you oppose a president's opposition to an unprovoked invasion of another country by a shitty dictator-run colonial power just because they don't like America and your kneejerk contrarianism tells you that anyone who says bad things about American foreign policy must be good. Yes, Biden sucks on Israel/Palestine, but you and the part of the left you listen to hated his foreign policy before 10/7, which at the time consisted of actually withdrawing our troops from Afghanistan and of supporting an ally against a hostile foreign invasion without getting American troops caught up in it.
"Leftists" like you are worse than worthless. Just loser fucking GenX assholes who are too lazy to do the tiniest bit to advance any causes you supposedly support and spend all of your emotional energy trying to prevent anyone else from actually advancing those causes, pretending that you're just too morally pure to sully yourself with politics. Fuck you. Trump is promising mass murder and not only can you not be bothered to do your most basic civic duty to stop him, you're actively encouraging others to stay on the sidelines too. People like you are why Reaganism took over American politics and why the Democratic party felt the need to triangulate behind Clinton in the first place. Politicians don't chase votes from nonvoters. If y'all had actually cared enough about the things you pretend to support to stay organized and politically active, America would be a much better and safer place right now, the fucking planet wouldn't be nearly as cooked, we wouldn't be mindlessly supporting Israel right now, and people like troph wouldn't need to be making fucking escape plans.
If you're not going to lead, and you're not going to follow those who do, then get out of the fucking way.