Research voting by mail in other states. There are literally zero reports of voter fraud with mail-in voting. Ever hear of Absentee Ballots? Voting by mail is nothing new. These scenarios of "special interest groups" getting people to give up their ballots already happen in the form of political parties. Political parties have less control when you're filling out your ballot in the privacy of your own home. Voters will have a packet of info about each candidate and referendum/proposition allowing them to make an informed decision.

If you think voting is a simple matter of being "too lazy to get off the couch and go vote", then you must be old and retired with nothing else to do that day other than get out and vote. Tell a single mother that she's too lazy when she's working multiple jobs to pay her bills and can't get away to visit a polling place on a random Tuesday. I'm guessing you don't want people like her voting in the first place.