>Not 1 incident = 1 vote, but 1 incident = 1 criminal case affecting 1 election.
This doesn't reason out.
The question is "What impact does voter/election fraud have on elections?"
You determine this by calculating the impact that these fraudulent votes had on the election. It doesn't make sense to say "because there was 1 fraudulent vote in one county in one state, we have to count all 500-100,000 (?) votes in that county as fraudulent too."
This Heritage Foundation report is literally an analysis detailing how voter fraud is a non-issue in American elections.