No, my browser doesn't. Google's public DNS has little bearing on how I reach sites, unless I've specifically configured it that way. Either you really don't understand how DNS works, or you are simplifying to the point of just plain being wrong.

You could argue that the root servers are too centralized, and that their control constitutes centralized DNS control, but since the only reason they have control is that all the different DNS servers use them as authorities, an argument could also be made that their control is more be convention than anything else, and all it would take is a competitor to ICANN that added some value, and eventually we could have multiple authorities. Whether that would be beneficial or detrimental is another discussion.