While agreeing with most of the above, progressive candidates don't have to convince 50% of the population that minorities aren't the cause of their problems. They have to talk about the big, obvious inrerests picking people's pockets and offer solutions to that, as well as solutions to the material problems caused by 50 years of state abdication from fulfilling people's needs which markets refuse to fulfill. In other words the progressives have to describe the whole problem and let people make the obvious conclusions themselves. I bet that over time, not all, but enough of them will.