This isn't secession. There's no pre-existing government to do the seceding, no defined boundary of that governmental entity. It's a mob inside an ad-hoc perimeter, no more a formal territory than a pioneer wagon circle was a territory. This is a criminal matter for the feckless politicians and hamstrung police to work out.
At first cup of coffee, this seems accurate, but...
This is going on with the consent of local government. The mayor and crew is doing nothing about it...nothing.
In all reality, it is an official movement, by proxy.
This is not unlike the genesis of Hitler's Brownshirts. Not a 100% parallel, but similar.
So, the police department gets defunded, who would the commie mayor tap for enforcement activity?
Well look at this! Here's a group that has been functioning in that capacity around a few blocks of the city. We'll just let them do it.