Oh well. It’s nice to see Warren in third place and doing okay with black voters considering what she and the others are up against.
Looks like Joe is rubbing off his competition.
More seriously, I think a lot of Democrats underestimated how many of their gains have come from really deep-down conservative suburbanites identifying as Democrats. The base has radicalized some, yes, but there's now a whole swath of voters that no candidate is really going to compete with Biden for in the early stages. These are the folks who like that Biden says "Trump doesn't represent the Republican Party" because until recently, that was them. They'll go for him because he's moderate and well-known.
Those suburbanites that you are talking about are not conservative. Moderate, maybe even fairly liberal, but not conservative.