The timeline that the left was promised hasn't materialized and the average Biden voter is starting to realize the accusations of fraud might be true despite what the media was telling them. This is why they are so silent right now. They're nervous and worried that they're wrong and on the wrong side of history. Their own talking point of "count every vote" has backed them into a corner and the only way out is to give into Trump's demands. We're reaching a tipping point where those involved are noticing the narrative is no longer in control and they are considering/have started to abandon ship in order to get in front of what's coming. The longer the Biden campaign draws out the inevitable...the greater the risk of public exposure becomes. Announcing themselves as winner of the Presidency amplifies the severity of their crime. All we have to do is keep up the pressure and ignore the obvious demoralization going on that is meant to sway public perception.
They have no way out.