testing doesn’t drive hospitalizations.
However, hospitalizations do drive some testing, and there is some indication that people hospitalized for other things are testing positive and getting counted.
But that doesn’t explain the huge spike in hospitalizations starting exactly when you would expect it to, of younger people.
In Arizona it seems to be driven by migrant workers and a new wave on the indian reservations.
You have been drinking the media Kool-Aid. Hospitals have been losing hundreds of billions of dollars during this “crisis”. There is no reason for young people to be hospitalized in large numbers from “Covid-19” they don't die from it or get seriously ill in most cases. If you will notice... there has been no increases in deaths during this time period at all. Any increase in hospitalizations from Covid-19... is profit taking by hospitals and doctors who “need” the money.
The actual increase in hospitalizations is due to pent up demand for serious “elective surgeries” like heart valve replacements, organ transplants, and other procedures that are not considered an emergencies but will definitely kill you if you put them off too long.