The VP debate was an absolute win for Pence and accomplished three very big things:

• Raised serious concerns about Biden destroying the federal government through court packing
• Debunked the "fine people" hoax on a national stage resulting in an accurate fact check by the BBC.
• Showed Kamala to not be particularly presidential.

On top of that, you have:

• the President recovering from Covid in mere days and now speaking about this plague from a position of experience;
• growing unrest amongst BLM/antifa now attacking suburban neighborhoods; and,
• increasing confusion over Biden's policies regarding the taxes, fracking, and the green new deal.

Biden based his campaign against Trump on racism and covid--and both of these attacks are utterly falling apart. At the same time, the primary attacks on Biden are crystalizing: court packing which will destabilize our government and put our democracy into unknown territory, destructive economic policies that will plunge the country into a depression, and growing unrest amongst BLM/antifa which Biden can't credibly be depended on to quell. You may not like Trump, but what scares you more: dubious claims of racism and mishandling of a pandemic that is essentially over; or, government instability, economic collapse, and civil unrest.