One thing I've learned from this election is how rare voter fraud actually is. I assumed it had to exist, just not on a significant scale. But if highly motivated people are chasing it in such small quantities, it must be rarer than I thought.
Your epistemology - your fundamental ability to understand how statements can shown to be true or false - is broken. You can't "do a study" to prove that contention. "We proved everyone who voted was legitimate even though no one knows who those people were"