You have hit on the key point. We should aim for a quantum improvement in election integrity. Statements by experts that there is no fraud when they have know way of detecting it even it was happening do not really convince anybody. I would aim several steps further. Before a vote is counted it ought to be verified as eligible by a videocam pic of the voter holding the ballot, a digital pdf of the fingerprint of the voter, and a digital pdf of the signature. Videocams and scanners at drop-off boxes and at post offices and apps on phones and government voting facilitators should be available to ensure everyone can vote. There should also be a pre-screen and repair process so people who initially send in a ballots without a correct validation packet will be contacted and given the opportunity to repair it. There should also be an audit where each voter is notified that they voted. It might be interesting if you get five different notices from several districts in different states where you lived previously. There also should be a separate office that takes death certificates and follows up with districts to get dead voters off the rolls. The technology is available to improve election integrity and not impair anyone's right to vote. We just need to think of better ideas and implement them.