I think that's the Rats' game plan, but I think it's a pipe dream.
I lived through the collapse of the USSR. What happened when the ruble collapsed and chaos was everywhere was that everything got real local real fast. Entire regions of the USSR broke away and most of them are independent countries to this day.
And as unpleasant as some of the governments of Russia and the other countries that emerged from the former USSR can be, none of them come close to the totalitarian Stalinist past of the USSR. The collapse of the USSR was one of the great liberating moments in human history.
As to our current situation, I don't think that if, for example, Ebola and the Enterovirus becomes epidemic from illegal immigrants that people will reach out to the feckless Feds for help. Why would they. The Feds caused the problems with their "invade the world, invite the world" insane foreign policy.
Rather, much more likely, Texans will demand that their Governor close the borders and stop all flights from African countries landing in Texas airports. And not only Texas.
Libs live in a fantasy land. They want the Feds to undertake actions aimed at collapsing the system in the hopes of totally centralizing all power in Washington - while those very same actions (or perhaps better, inactions) lead inexorably to the total loss of confidence in the federal government.
That's exactly what happened in the Soviet Union. Nobody could take the Central Committee seriously anymore. And so people looked to their regional governments (and to themselves) to weather the chaos.
Whatever can be said of what ensued, it certainly didn't result in augmented Soviet power. Same in the former Yugoslavia.
In short, a collapse will not entail centralization. It will entail the devolution of federal power to the States and localities and private organizations.
I hope you are right. Did you live in USSR at that time?