That's the trouble with the progressive disease, it spreads itself just like any other plague does from host to host. It has to, since it kills the host by infecting it, just like Claude Motley described first hand.
Those who escape the dying host city they formerly lived in, bring it with them and infect their new city with their politics, making it the new host for the parasitic progressive disease to feed upon.
I thought when a lib moves they put that garbage to the front curve for pick-up by the garbage truck when they get ready to move, meaning, “when in Rome, do as the Romans do” change your attitude.