@Trevorblack2014
Although the example the other person chose is abhorrent to most of us they are basically just pushing the boundaries of "freedom of speech/thought" to its very limits.
Which is kind of the point of most freedom of speech arguments: how repellent/intolerant/unempathic/perverted are we willing to put up with.
The catch is, once you draw a line *anywhere* you can no longer claim to uphold freedom of speech in your country. Some countries make much more of a fuss about it than others. Britain does not have a formal constitution to get hung up about.
Anyway I see no logical fallacy. I do, however see crapulence. (you won't find that in the dictionary though; please don't pass it on).