You’re sort of talking about ballot harvesting, but what you explained is illegal.
In some states ballot harvesting is illegal, in others, it’s not. However, ballot harvesting is not filling out someone else’s blank ballot.
Ballot harvesting is collecting completed and sealed ballots and dropping them off for the individual. This ensures the votes are cast and counted. Many people get lazy. Sad.
Since we all know which districts are red and blue. The Dems knock doors in blue districts to ensure those ballots are collected and counted. Great strategy that the republicans should be using.
Another strategy, if I were crooked and a Dem. I’d go ballot harvesting in the red districts, but then I’d make sure all those ballots ended up in a landfill.