> And you need to convince roughly half of the voting population
Not with gerrymandering, you'll effectively need much more. And then there's the fact that people are consistently voted in on a set of plans/promises that either are never followed through with or they do they opposite because they were just saying the things that get votes rather than what they actually intend to do. The system is broken, plain and simple, and it's not going to change because it benefits those with the ability to change it.
Gerrymandering isn't really the issue. Even in a gerrymandered district, the representative is generally going to do what the majority of people in the district want. If you can convince the majority of the people in the majority of districts, you can get something done.
The biggest "problem" is that neither party is predicted to control the House, Senate and Presidency all at once any time soon, so it almost inherently has to be bipartisan. But the prevailing spirit is not exactly cooperation and good faith, on either side.
Not with gerrymandering, you'll effectively need much more. And then there's the fact that people are consistently voted in on a set of plans/promises that either are never followed through with or they do they opposite because they were just saying the things that get votes rather than what they actually intend to do. The system is broken, plain and simple, and it's not going to change because it benefits those with the ability to change it.