Joe Biden is already revealing what a disaster he would be.
First of all, the man has been in politics for 50 years, and is a dementia candidate - he has no mind of his own.
That means he will be ruled by Fed.gov apparatchiks, bubble-dwellers, and ideologues in the party. They simply are not in touch with reality and will come out with their mandates and orders with no consideration of how it is recieved.
When you can win any election, it takes away the incentives that someone who cared about functioning Democracy would otherwise have.