I think a Biden win will be very negative for markets especially if Dems take control of Senate. It will be tax and spend (on social programs). Trump would be bad for the country as well. There are no good choices.
Here's something to consider: From the FT (James Politi): “Mr Biden made the US central bank a key focus on his plan for a ‘major mobilisation of effort and resources’ to help ‘advance racial equity across the American economy’, his campaign said… In particular, it said that Mr Biden would work with Congress to amend the Federal Reserve act to force the central bank to ‘aggressively enhance its surveillance and targeting’ of ‘persistent’ racial inequalities.”