Seems plausible. One counter to this is that we are seeing infection rates increase everywhere following vax and booster uptake.
Dr. Malone predicted our current spike last fall, noting we were 4 months behind Israel in vaccine uptake. And...here we are.
Could also be related to false sense of security among the vaxxed and the "passport policies". The vaccine doesn't stop infections but vaxxed people are free to gather in crowded space. Unjabbed are not allowed into public places. So it's to be expected there would be an uptick among the jabbed since they are more free to gather.
Doesn't explain the difference between these peoples, though. Perhaps that has more to do with testing or a more rural outdoors life. Would be interesting to see Gaza Strip numbers for example where it's more crowded than New York City.