Most of America have expressed that too. Trump ran as a populist that was anti-establishment and the DNC are content with using the losing strategy of old with run a neoliberal who isn't well liked. They got lucky in 2020 because of covid. Bernie had the popularity with the bases they wanted but they completely shut him down through the media and within the party.
So do you think a far left Kamala would have won running a Pro Palestine, blatantly trans friendly, pro drug legalization, open borders, and abolish the police platform??