I'm a naturalized American citizen who figured out what free speech actually means when studying for the civics test. I suggest everyone try it out if only to dispel the popular myth of 'free speech means everyone can say whatever whenever'.
Why should I? Just reading the wikipedia page on the first amendment would clarify most if not all popular culture myths about freedom of speech in America.
It would undermine the single implicit response and rallying crying used by a bunch of (certain people) right now, so, there's a bit of fingers-in-ears going in.