Then work your precinct. You don't have to sell the Democratic agenda. All you must do is let your constituents know who you are and listen to their concerns and beliefs. You can appoint assistants to help you. If you do this, your precinct will vote Democratic.
People feel excluded and isolated from their government.
Your contact with them will make them feel included. We can post all the wonderful political argument and philosophy to each other we want. It is not political philosophy which causes people to vote one way or another. It is their feeling of belonging. Perhaps this explains why many Americans are ambivilant about participating in the political process.