If there was a requirement for Photo ID at all polling places, then this would be a non-issue. You could have 40 million dead people on the rolls. Who cares? They aren’t going to walk in through the door with a valid ID, so none of those dead people are going to vote.
But IDs would be so inconvenient for people ...
Germany has a mandated requirement that you have to carry a state-ID with you, and it has to be used for voting purposes. Without the ID, you don’t vote.
Dead people voting in Germany? The only way is that you showed up at 8AM to vote, and had a heart attack at lunch. On the books, you’d be a legitimate dead voter.
For me to imagine four million dead voters voting in the US....I’d consider it a Constitutional crisis and it’s time to have personal law suits against states and counties....forcing them to pay out billions for their corrupt practices.