Repubs are purging voting rolls....

[albacore]

2. What about the people with no computer?

Or computer skills? Seniors, maybe.
My feeling is that POCs are being targeted. (Am I wrong in that assumption?) They generally vote Dem. The hostile reception they might receive in person might deter some from checking at a county courthouse or the like.
And black Americans are about 9% less likely than whites to have high-speed Internet access.(Pew survey) 9% doesn't seem like much, but if the purged voters are heavily POC....
The Repubs don't have to purge ALL of any one group, just some pruning here and there can be enough to throw an election.