Nope, far from it. America is far better in that department. Canada prohibits all sorts of speech, as do most European countries as I recall.
As for the comments, it doesn't matter to me who made them. Advocating the assassination of heads of state, especially democratic ones, is wrong. The fact that Robertson said it only makes him a hypocrite, not to mention a lousy Christian (whatever happened to "turn the other cheeck"), but it's what was said, not who said it, that's the problem. For all that, by no means would I support censoring him or anyone else.