I am as free market as they come.
I don't consider Google a monopoly. I figure many "free market people" define a monopoly pretty strictly. They're not forcing me to use their browser, search engine, maps, email, or many other services.
However, they do have a disturbingly high level of market dominance. So seeing as I am a part of the free market (after all, the "economy is us"), I have opted to minimize my use of Google products and services and encourage others to do the same. This wasn't the tipping point for me; I've been advocating alternatives for quite some time.
I don't want Google punished with anti-trust laws if that can be avoided. I'd much rather see users apply corrective pressure. Of course, that assumes users appreciate the importance of their privacy, which makes this a lengthy game of messaging and persuasion.