There are two issues here.
Appropriate for this forum is the matter of whether, were a "radio personality" to do something similar, my reaction would be the same.
This is where the Imus commentary about the black female sports team comes in as a comparison. The comment was repudiated by the station and network. Apparently, despite protests from "all over", following a firing, hiatus and apology, it was thought that Imus had enough appeal and talent to recover and he was allowed back on the air.
In the case of Griffin, she has been fired from most of her spokesperson gigs and told not to show up on December 31 for the New Year's gig with Anderson Smith, which nobody (per Nielsen) watched anyway.
The only difference here is that Imus had a regular gig while Griffin did "piece work" and had not been very busy.
For the future, look at the differences. Imus apolgized; IIRC he even went on with the Rev. Sharpton and did what seemed like a genuine or, at least sincere, apology. Griffin has blamed the offended party claiming that she has been buried and, in essence, that this is not her fault.
As a broadcaster, I'd be inclined to do as was done... give Imus a second chance. As to Griffin, her reaction paints her as a spiteful, misfiring loose cannon.
Griffin was not "broken" by anyone. She broke herself, and then tried to pass the blame to others.
The second issue is the political side of the argument, and it is important to the context (but not the content). However, that is not appropriate for this board.