They are not what caused all the problems. Paper ballots mailed to everyone on voter roles is where it happened along with the ballot drop boxes. They know what ballots were returned so knew which ones to forge and stuff the ballot boxes.
That’s the low tech cover.
Even if every voter casts a legal vote, Deep State can and will continue to steal elections with electronic voting machines.
Switch votes, lose votes.
Why do you think states that don’t have RCV use RCV-enabled voting machines, hmmmm...