I don't think we're going to get someone to the left of Kamala for the next few presidents. All the protest voters helped our country choose hard mode, and a lot of them are trying to rationalize it in any way that doesn't make them feel like they played a part in such a close election.
We have Trump because more people voted for Trump, and lots of people didn't vote at all. You could blame Biden or Kamala, sure, but the entire political party could also be blamed, along with the establishment itself. Was Kamala the best candidate to run? Probably not. Biden decided to try for another term, though, and we ended up where we are.
When you can choose between the lesser of 2 evils, or not choose at all: be aware of what "not choosing" will actually do.