Among many. By the way, your comparison is called a fact. Voters defecting from one party to the other in a general election is a known quantity. And if you want to speak of shenanigans, they did exist during the 2016 primary. I will tell you this right now, the current contest is seen as rigged (why the role of super delegates is greatly diminished) and trump will have better than average chances of winning re-election.
By the way…expect mistrust in the whole system to increase if a large group of potential voters feel this way. Incidentally, things like going to Flint, MI and pretending to drink the water instead of declaring a federal emergency had a lot more to do with demobilization of a Democratic Party cohort than Trump. It did enough to lose elections where it actually mattered.
Have an excellent day.