Are you familiar with the U.K.’s “hate speech” laws?
http://en.wikipedia.org/wiki/Hate_speech#United_Kingdom
http://www.jpost.com/servlet/Satellite?pagename=JPost/JPArticle/ShowFull&cid=1235410736256
http://joemygod.blogspot.com/2009/03/uk-anti-gay-hate-speech-ban-upheld.html
It is unlawful to criticize Islam, minority groups, or homosexuality in the U.K. With laws like that on the books, surely you can see why they wouldn’t want somebody like Savage in the country.
The idea here is to engage U.S. officials in denouncing this action which is good for a number of reasons including preempting and discouraging what some "weenies" in this country want to do.
I think bornred has a point about national sovereignty. I hate the "international" code or law thing (other than that which affirms national sovereignty) that is slowly blurring national borders, language and culture. Bottom line - if the UK want to be stupid, that's up to them - they have that right just like our country does. Our protest should be to towards our officials to sanction against such policies.