This construction is revealing
In "The right’s favorite new race guru: Why you should know Jason Riley" in Slate, Ian Blair, a Master's Candidate in the Cultural Reporting and Criticism program at NYU, writes:
Liberalism did not deny opportunity and prosperity to black Americans; instead, racism attached itself to liberal policies. . . . the liberal holy grail, President Franklin Delano Roosevelt’s New Deal, was crafted specifically to include the racist traditions of the Jim Crow South.
"[R]acism attached itself": how did racism "attach" itself? Why? More importantly, if the "liberal holy grail," the New Deal, was "racist" what hope is there for any great Liberal reform, now or in the future?