First thing is the Spike Jones reference comment (and I heard it when it was made ) was clearly satirical. Again Rush loves to emphasis the absurdity of the other side by being absurd. Spike Jones had suggested black kids should skip school to see his movie, Rush thought like I did that was absurd (and the wrong message to a community that needs to value education), and Rush suggested we follow Spikes logic to it's conclusion. The other comments I didn't hear when he made them, so I don't know the context they were
What I know about Rush is this, he has a black co-host, he treats several blacks with far more respect then some so called black leaders treat blacks on the other side of the political spectrum. And he regularly has a black guest host.
Here are Rushes "controversial" views on race from his own hand in todays WSJ
http://online.wsj.com/article/SB10001424052748704322004574477021697942920.html
I've already quoted one current NFL minority owner who sings that "N*****S and P****y holes are one in the same". For the record they are not African American. So is that a "controversial" position on race? I would say it's a bit more contemptible then anything Rush has said.