Depends on what the defintion of "here" is.
Every poll in the country has consistently shown that voters/dems either don't want Biden to run or want a choice.
Keep in mind what I have said before, which is that Biden will experience a dead cat bounce in some numbers as dems give up on the idea that there is an alternative or any hope for one and beging to rally around the idea that a dem needs to be elected. Which is exactly what is happening. Big mistake though to do what you are doing which is to conclude that there is "not much evidence that democrats want an alternative to Biden. BIG MISTAKE. They are flaccid as can be about Biden.
If the DNC had run a for-real primary where you had serious contenders such as Newsom or Whitmer or the like, you would see lots on non-biden votes, to put it mildly. Everyone has flattened out now. They wanted a choice, not a chance to come out and vote for some fringe unknowns.
But yeh, the Massah owns South Carolina. That's why they started there. And the whole dem primary is flat as a pancake in every state coming up. Nothing to watch. Be careful though if anyone puts up a third party. You want to watch that plenty because some of those who have given up on Biden could vote there and throw it into the house. Not that I have not pointed that out before, but don't get cocky. There is no love for Biden. He is just a utilitity grade candidate when someone wants to vote for a dem rather than a pub. Cardboard cut-out Joe.