That's right. And why is that? Because sketchy stuff *does* in fact happen.
You have to AT LEAST grant that some of these things at a minimum look bad when viewed with a jaundiced eye.

Sketchy stuff doesn't happen. If it happened, then the many observers from both parties would be able to walk into a court and tell the judge about the sketchy stuff.

What does happen is ordinary, non-sketchy stuff that people either mistakenly or deliberately say is sketchy. Not because they are looking at it with a "jaundiced" eye, but because they are seeing what they want to see - or have already decided they will see.

A national election is conducted over many tens of thousands of precincts, with over three thousand county canvassing boards, with several tens of thousands of election workers, with more than a hundred million ballots - all trying to get it done (for the most part) within a less than 24-hour period. With all those people in all those buildings with all those ballots, there will be things that happen that someone can claim is suspicious - even though it's just the law of large numbers.

If you have literally tens of thousands of polling places, it's actually very likely that at least one of those buildings will have a power outage. Or a pipe burst. Or that someone from Parks and Rec gave the wrong key to Elections. Or whatever. Because there's just so many of them, it is inevitable that there will be some glitches or mistakes or accidents.

If people weren't being told - falsely - over and over again that the other side was always cheating (again, even though none of the observers who had the opportunity to watch them would ever say they were cheating), then people wouldn't be falsely believing that all these things were malfeasance or perfidy, rather than the inevitable result of such a sprawling process.

But since those events are inevitable, and you're telling me that you think the right will riot if they happen, then you're basically just saying the right will riot if Trump loses. Which is exactly what you're claiming will happen with the left.