Did any ineligible voter cast a vote in your anecdotes? No? Hmm.
https://www.quora.com/Is-voting-anonymous-in-the-United-Stat...
It’s interesting that you were adamant about fraud not happening, yet didn’t know the actual argument. Further not knowing our elections are anonymous shows that you’re just arguing a point you don’t know. This is what I meant by the left not listening. The assumption is the right is “uneducated” yet here we are explaining what the real problem is while reeducating you.
You raised a question about the rosters which are by definition not anonymous, being a list of names. To show fraud you would need to show evidence that someone cast a vote while not on the roster or incorrectly on the roster.
The registration, chain of custody and observer rules prevent this from happening at a large scale.