People have Satellite, Cell providers, and usually a DSL option to choose from if they don't like Comcast. Those aren't particularly good options, but realistically neither are the other browsers besides Chrome. Plus, the only other browser that people choose to use is Firefox and that's primarily funded through a deal with Google.

The problem is that Google has laid waste to many potential markets by giving products away for free to protect their ad monopoly. How can you start a competing company in Maps or Browser or mobile OS when your competitor is willing to spend billions to make their product and then give it away for free? The conundrum is is it harmful to consumers? Google gives away a bunch of high quality products for free but ultimately they all serve the Ad master.