We've been saying from day one, that if Biden doesn't move to the left and use every tool at his disposal to improve people's material conditions, Trump's going to win in 2024.
Biden didn't just not go left, he tried to outflank the republicans from the right by facilitating genocide, ending covid protections, and passing the most draconian border bill since like the 40s.
This is the closest thing he could have done to handing Trump the presidency, short of appointing him VP and stepping down.