And that's the problem -- the D half of the country. Even if you could convince them of all the wholesale corruption, scheming, and purely anti-democratic actions and policies of their party, they will still vote for whatever crook whose name ends with a (D) long, long before ever voting for an (R).
The only hope lies in the movable middle, the relatively tiny portion of voters -- in an tiny portion of States -- who ultimately decide elections. And while they lack the passion of hard-core partisans, they often lack the will to even get off the sofa to go and vote.