Ibram Kendi, founder and director of Boston University's Center for Antiracist Research, sparked outrage on social media on Saturday
He suggested whites adopt black kids to shield them from charges of racism
Kendi was commenting on Judge Amy Coney Barrett's two Haitian children
His tweets about Trump's Supreme Court nominee prompted calls for his firing
Democrats were criticized for questioning the legitimacy of her adoptions
Barrett has five biological children and two adopted children for Haiti
Republicans rushed to her defense and called the comments 'disgusting'
Trump announced Barrett as his Supreme Court nomination on Saturday