The CDC says > 40% of US adults are obese (> 100 Million people!) and 13% of US adults have diabetes. If that's not a chronically sick population I don't know what is.
[1] https://www.cdc.gov/obesity/data/adult.html [2] https://www.cdc.gov/diabetes/pdfs/data/statistics/national-d...
My big problem with the initial lockdowns was not really about the larger lockdown at all - we just (obviously in hindsight) went too far with locking down larger, wide open places where people exercise.
Spring break in Miami with people crammed onto a beach? Probably a bad idea. A few surfers going in the water a hundred feet from one another and some other people doing a morning run? Likely a net benefit to Covid outcomes.