There are three basic reasons:
1. It is very difficult for Republicans to harvest ballots in the big urban centers, where it is logistically easiest to do. They do not have the infrastructure and voters there.
2. The Democrats have lots of people who are willing to commit criminal acts to stay in power. They have the prosecutors and judges and election officials who are willing to back them up. The Republicans do not, because Conservatives take a much dimmer view of cheating and lawlessness.
3. The Democrats/Media/deep state have the enormous large stick of the Media to cover for them, explain it is ok for Democrats to do these things, but terrible for Republicans to do these things. (that is changing, and explains the desperate attempts by the Democrats/Media/deep state to censor, control the media, keep information from getting out)
Question, if the ‘rats are going to commit industrial-scale election fraud, why not try to beat them at their own game? Why not out “harvest” them?
If we do the same things as they do how are we any different?
Which begs the bigger question. HOW ARE WE DIFFERENT FROM THEM?
https://kirkcenter.org/conservatism/ten-conservative-principles/