In regards to free speech, this comic kind of sums it up for me:
http://xkcd.com/1357/
As to why words are important and that some should be culled from our respective languages is because they have meaning and as easy as it is to look at things from a male, white heterosexual point of view one shouldn't overlook the fact that the words and viewpoints espoused by people like Vik have had a profound impact on a group of people and their ability or lack thereof to live out in the open without fear. Just telling them to ignore it won't fly. Just as society has come to accept that the N-word isn't really acceptable due to it's long history of use within the most derogatory contexts the same applies for the F-word and I'm glad we are getting to that point.
And I don't think anyone told you to LIKE Conchita Wursts song (I still haven't heard it myself) but if you put in the context that a bunch of politicians in the eastern parts of europe decided the minute they saw her to publically call for her exlusion from the Eurovision then the fact that she was voted the winner makes a whole lot sense and should be respected as a least a bit of a stand against the rise of rightwing intolerance that is currently fucking a lot of people over in these parts.