Yes, he would be. If you've never heard his show, try not to judge it.
He's been instrumental in helping the republicans gian control of the state and especially getting a republican in office as milwaukee county executive - something that hasn't been done, since, gee, the beginning of time.
That's why there are all the protests. He's apologized repeatedly for the comment. But the leftist groups that see him as a threat want to use this incident to be rid of him.
It appears that every group gets to make up its own list of offensive terms.
Here are a few of mine. I am deeply offended by the following "people of color" used to exclude me. 'Anglo'
"Bible Thumper" Implying people who share my religious beliefs are ignorant, stupid or are Nazis or fascists.
"Homophobe" to describe religious opposition to the agenda of homosexual activist groups.
ETC