Because if they did then legions of Federal agents and para-militaries would be sent forth to kill the evil white racists. Feral, out of control Negroes are practically helpless. They wouldn't survive a week if Uncle Scam did not feed them of use the police and the courts to protect them.
I agree with you. The Federal Government not only seeks to diversity every community is America by will prevent any attempt to thwart even the most egregious effects of diversity. And the Federal Government likely would use force if necessary.