Keep laughing. There is a significant faction of people in this country who believe that Republicans are mean-spirited, racist, and only interested in the rich and corporate America.
Until they are convinced otherwise, they will never vote for a conservative candidate.
Of the ones I personally know, some of them are union people, some are older people who believe Roosevelt saved them during the Great Depression, some of them say the Democrats have a better record on Civil Rights, and some of them are Southerners who were raised on stories of the Republicans and Reconstruction.
But they all believe that Republicans are bigoted, selfish, and against their interests.