Because TPTB have been cheating in elections for decades. They were cheating when votes were hand counted as well.
Dems. can't win if they don't cheat.
They just made it easier for themselves when they went with the electronic cheat system.
But when they thought that might not work, because it might get intercepted by White Hats, they went back to the Old School way of cheating as well.
They cheat every which way they can think of.
And they never get busted for it because they own the Mayors, the Police Chiefs, the Prosecutors, the Judges, etc.
What do you think they needed all of those honey pot traps for? To blackmail everyone who would stand in their way of cheating.