If he would have done this in 2017, the Democrats would have been less successful in 2018 and 2020.
When one side plays by the rules and the other does not the results cannot be surprising.
Ballot harvesting should be illegal. Period.
Mail-in ballots should be tightly controlled like they do in WA and other states where the ballot is sealed and a signature is applied and compared to the voter registration card. While I would prefer in-person voting unless there are extenuating circumstances, voting by mail can be done safely with controls.
I am not a pessimist by nature and I know this is a hard day for all of us, but the underlying problems are going to bite us in the butt either now or in the near future.