There is your direct proof right there. They cheated with the voting machines. That would be the ONLY way to give Biden that many votes.
Numerous people who appear credible have pointed out that the ballot dumps we observed after the shut down of the count were NOT possible by scanning the ballots because they greatly exceeded the ability of the machines to scan.
There should be physical ballots for all of these dumps. Each box of ballots is supposed to be sealed after the count and clearly marked as to their origin. The only way to check this is to do an audit.