Yes: there were marches of millions of people in all the major cities of the Western hemisphere against what were readily understood to be the lies of the Bush Administration rushing to war. Didn't matter. The invasion of Iraq happened, and millions stood dumbfounded, unable to understand how they could have failed when they clearly got their message out.
Are you under the impression that people weren't free to speak their minds "back then"? People did speak their minds, loudly and regularly. That didn't change the outcome.