So what? How's that make any of them "vibrant" and something for humanity to enjoy more of, compared to locations having less?
Remember, this started with the absurd assertion that Chicago shut down meigs because it's a dying rustbelt city that couldn't afford to keep it. That's why economics matter.
As for whether cities or rural areas are 'better'... Depends entirely on what someone values.
Cities have better paying jobs, better access to health care, museums, better restaurants, vastly better live music scenes, more diversity, more schools/universities, public transportation, better infrastructure.
Some people value those things.
Rural areas are more affordable, have more space, some areas have lower crime (others are among the highest, so choose carefully), more sense of community, less pollution, less noise, no congestion, slower pace of life.
Some people value those things.
But it seems clear that the things that bring people to cities can be easily labeled as vibrant and the ones that draw people to the sticks are more like serene, tranquil, placid, restful...
I've had decades of experience in both. When I was younger I preferred the vibrance of cities. Now that I'm in my dotage I prefer the affordability and peace of rural areas.
How did Memphis get on a list of supposedly large cities?
Yeah, I chuckled at that also. But I looked it up and it's 600K in the city proper and 1.3M in the metro. So big enough that I decided not to address that outlier. Probably OP just had a bad night in Memphis at some point and it's been on his s*** list ever since.