The mail in ballots are also unwitnessed, so the question is who actually filled them out. That is the point. If you vote in person and are properly identified, you get a blank ballot and nobody to help you fill it in. Sure people can be influenced in any number of ways with respect to voting in person, but they at least have to make the effort. I wouldn't have a problem, for example, if mail in ballots required the person appear before a notary with a verified blank ballot, proper identification, and placed the completed ballot in a secrecy envelop before getting the notary's signature. That at least fairly well duplicates what's required for in person voting. What was allowed this time was a sham.