It’s a periodic thing here in Illinois where loud conservative voices want to secede because Chicago is a hell pit, a drain on resources, and they can’t stand how much the Democrats control in the state. This is all basically bluster though because Chicago and the surrounding areas tend to basically fund any and everything downstate (the metric escapes me but it’s something like the “blue” areas lose a dollar for every dollar spent but the “red” areas basically gain a dollar for every one spent). So if Chicago was suddenly its own state, they’d all be left with basically nothing.

As with so many right wing things, it’s a grift/manufactured outrage to distract from the fact that those leaders don’t know what the heck they’re doing or are actively making it worse and scapegoating the liberals.