A lot of people responding to this post don't seem to understand that freedom applies to more than just personal choice. The United States was not a free nation while it accepted slavery and Firefox is not free software while it accepts digital restrictions management.
Just as no one forced Americans to own slaves, the fact that slavery was allowed was an insult to notion of freedom. Arguing that the "freedom" to choose whether to own slaves or not made Americans freer would be called ridiculous by any sane person, yet the same argument is being bandied about in this discussion as if it made any sense.
The Free Software Foundation got this one right.