“Divide and conquer”.. Sun Tzu, ‘The Art of War’ if I remember correctly. You’re addressing the soft war aspect of their implementation of Cloward-Obama-Piven. 0bama uses many tactics, mostly that of Alinsky and sprinkle in a few of his other idols such as Davis, Malcolm X, Soros, Hugo Chavez, Che..
“Divide and conquer”...
Otherwise known as diversity.