Structural racism in the US in spite of the Civil Rights movement horrified the authors of Divided by Faith. By structural racism they mean free markets. They wanted to tax the rich at higher rates and redistribute it to poor. That such taxation would hurt rich blacks and that most of the poor are white (though the poverty rate among blacks is higher) didn't enter their calculations.
Frustrated by the white evangelical insistence on individual responsibility and personal evangelism, they determined to move white evangelicals away from their fixation on the individual and toward solving structural issues through the government. Their solution was for white evangelicals to get to know blacks personally by having them to dinner and integrating churches. They reasoned that if whites could know black people well enough they would become as socialist as the authors.