Sounds like it's right there in your post.
Are you asking why the same people aren't outraged by both? It's because the ones outraged by Rush share those people's political view. Just as many people who share Rush's political view aren't outraged by his comments.
Those of us who cannot associate with any of these people's views would be outraged by all of it, except we are way too tired. The loud fools have won. They've won the TV, the radio, the newspapers, and especially the internet (e.g. the Open Forum). They will now and forever hold the conch in this country. Have fun yelling at each other.