Couldn't we go further, and just say "cities increase seasonal influenza mortality"? I mean, anything that is social, is almost certain to involve increased transmission of human-to-human infectious diseases. Live theater, classrooms, church services, drag shows, you name it, if it involves bringing a lot of people together, it's probably going to increase the spread of infectious diseases that spread by human-to-hum…
It's good to quantify and ballpark that damage instead of leaving it as an intuitive guess. If public policy demands the trading of lives, at least it shouldn't be done by way of blind poker. This study ballparks it around 10-20 deaths per year per 100k residents.
Except it is hard to quantify the downside of that bears on quality of life and take that into account. My 70+ year old parents are homebound for last 5+ months, and their overall physical and mental health from lack of physical and social activities have significantly gone down, to the point I expect if this goes on another 6 months or more I might lose at least one of my parents.