Look at the map of hot spots, animated over the past 60 days:

https://www.mayoclinic.org/coronavirus-covid-19/map

I don't think your Maddow-fed "analysis" fits the facts. I agree that vaccination levels play a role, but there are lots of other factors as well. I would like to know what the biggest ones might be so we can target more of them and (maybe) get the situation under better control.