This is just literally not true. Nearly every state routinely does statistical audits of voting machines compared with paper records. People hate to hear this

This is just literally not true. Nearly every state routinely does statistical audits of voting machines compared with paper records. People hate to hear this but: statistics work. You can randomly sample a portion (say, 2% to 5%) of ballots and have effective certainty about how much fraud or error there is in your voting system.