There is probably no single thing that you could ascribe to 70M voters except that they vote. However, there are plenty of themes that are touted amongst supporters, many (all?) of which are easily shown to be false. Also, his biggest benefactors are people with a lot of money or influence... which are definitely not most of those 70M voters.
The man was convicted by a jury, impeached, and is known to have raped people. He is a known national security risk. ... the "critiques" are endless.
IMHO, to say that there is a useful message to be sent by electing him is naive at best. The fact that nobody can seem to discern that message despite truly trying is also telling.
Is the message, "people just want to watch the world burn?" Is it something else? As far as I can tell, nobody actually knows.
Meanwhile, he has declared victory before the votes are actually finalized. Is the probability high? Yes. Does it undermine the process? Also, yes.
Are there factors such as, "Kamala is a black female" at play? Almost definitely. Does Trump pander to groups that are covertly/overtly racist? Yes. Do all of his supporters understand/admit that? No.