They will try to make it so. Imus is sort of a liberal/libertarian working for left leaning networks. Politically the left has nothing to gain by getting rid of him. Sharpton and the race pimps are the winners her.
Anybody white would be in buckets of trouble for the slip Imus made. It is a shame to possibly end a career over something that was more thoughtless than malicious. It is a bigger shame to raise the power of the Sharptons of the world.