Voter ID won't help with this scenario. Banning mail voting would, but then that disenfranchises citizens who are unable to physically get to the polls.
Again, requiring an ID to vote won't solve this.
But there's a difference between mail-in voting, and ID-free voting.
I cited Canada's process before.
I my understanding of their process is correct:
In order to request a mail in ballot, you need to send (or submit online)
Scanned copies of:
Your provincial issued ID (D/L)
2 Pieces of other ID (like a health card or utility bill)
They then bump that information up against the national voter registry to make sure all is in order, then they mail a ballot to that address.
While a person could still go as far as stealing their grandma's ID, healthcare card, and a utility bill, mailing it in, and then hanging around at her house every day until the mail man drops it off, and then filling it out and mailing it back in... that's much more difficult to engage in funny business than if a place is just mailing ballots all over town.
I don't necessarily have a huge issue with mail-in voting provided the proper checks and guardrails are in place. And it has to be something more solid than reliance on an election worker volunteer eyeballing signatures on a stack of 1,000 ballots and hoping they catch most of it.
Unless those bogus registrations were voting, this seems like a case where people were getting paid by a company based on the number of voters they registered, and were defrauding their employer
The reality is, in an ID free system, we don't know, and we can't know with a high degree of accuracy.
For instance, if we had an ID-free mail-in alcohol ordering system (which I'm sure many of us would've loved back when we were between the ages of 18-20), we wouldn't be able to pinpoint the number of young people who were placing the orders and grabbing it off the porch after the delivery guy leaves. But we know the number certainly wouldn't be 0.
To be frank, we've seen the lengths people are willing to go in the name of political tribalism, I'm not confident that we don't have quite a few people in this country who wouldn't be above saying "Well, sorry granny, but it looks like you're voting for my guy, this election is too important to risk losing"