I wonder if a lot of that testing is contact tracing people who were in contact with known corona virus carriers or travelers in corona virus areas.
Yeah, we don't need to test literally everyone, but we do need to be testing anyone with symptoms, and anyone who's had contact with known carriers. Yes, that will result in more negative tests, but the ones we do catch enable us to get those people identified and quarantined to stop their spread. We'll never catch all cases obviously, but it slows the spread.