It won’t fix it. The GOP can embrace mail in ballots, ballot harvesting and early voting but unless they also embrace cheating it won’t change a thing. The Dems will still copy ballots, have dead people vote, have illegals vote, pay homeless to vote, and hack vote counting computers.
Mail in voting: This is convenient for the dims in that they simply delete signature validation and use voter rolls to mail out. Most state voter rolls are years out of date, filled with non residents and dead people. So where a current household has 2 real voters, just use that address for the former occupants as well. So it's conceivable to send out 10 ballots for an address with 2 people. And there are 8 additional ballots in the system.
Ballot Harvesting: Send out harvesters, pay them per ballot retrieved. They fill out ballots, put in the bag and deposit at either a voting center or drop box. This multiplies the vote tremendously. And with lax verifications, ballots are not rejected.
Voting machines. Mountains of forensic evidence is already there. This is why many countries forbid their use.
Voting center "volunteers". Just pick your own people to count. Have them pull out suitcases after hours filled with perfectly printed ballots (for their candidate) and run through tabulators multiple time.
Election day: In heavy republican districts, slightly change the ballot to where voting machines jam, or have a big tech "glitch" where those machines go bad. Ask voters to hand their ballots in to be "counted later". Said ballots are discarded.
Three years and counting, and this has been fixed, in fact, it's got worse.
But the low information types believe putting a white knight on the ballot, and the dims suddenly will stop the steal. Fantasy.