How does any of that prevent someone from looking at the voting records, seeing that Bob never votes, filling out an absentee ballot in Bob's name, and dropping it in the nearest mail pickup box?
At one point his office was forced to actually investigate and look for fraud, and what they found... were wealthy people -- typically Republican voters -- who owned properties in multiple locations and were voting at each of those locations.
Absentee/mail-in ballots make that kind of fraud much easier, but despite it being the only fraud he ever found, Kobach never pushed for any kind of purge of multiple-property-owning voters from the rolls, or ID checks for mailed-in ballots. Wonder why...