That’s not a graph that’s two lines on a blank background…,
Even if I took those and turned into an actual graph of voting yes it would make sense if they stopped reporting as both plateaued as new votes were not counted and then spiked when counting resumed…
However it’s also imperative to remember that rural red counties tend to have less people to report and report first…while blue more urban and heavily populated areas tend to report later because there are so much more to count. This rule also applies to populous red districts like in florida.
Most states don’t have voter id for voting in person because you have to prove your identity when you register and if the details don’t match, your vote can be thrown out, audited, or even not allowed to vote period.
One anecdotal story of your vote getting botched by counters and COULD be abused does not illegal immigrant voters voting make.