>I think the focus shouldn't be on the unavoidable "information radiation wake" you give off as you move through the world living your life, but on the ways people utilize this information. The government, and private entities, need to be constrained in how this information can be legally used, not in the collection of it, which I think is impossible.

You clearly describe two options: preventing collection, and limiting utilization. I agree that preventing collection is impossible, but I don't think simply limiting utilization is enough. I think limiting utilization and retention is key. As long as the data exist, it can be utilized in the future.