As wounded as our Republic currently is it would be very difficult for a dictator to take control. You can thank the Second Amendment for that. No matter what has been going on in this country we have held regular Federal elections every two years. Wars, no wars, good economies and bad, the elections happen. Couple that with a Constitutionally mandated (25th Amendment) term limit on the President and the chance of a true dictatorship is very, very small.
These are challenging economic times. Probably the most challenging in at least 70 years. But, leading to anarchy? Not a chance. Collapse of the economy? That one is a non-starter too.
But, if you think that is a real possibility you should dump all of your assets now, convert to cash and then convert that cash to something more stable. Gold? Well, the problem with gold that would help in that situation is transport, storage and security from theft or seizure.
BTW, if you really do think we are on the verge of collapse and want to dump your assets ... I am more than happy to discuss any real estate or other hard assets you want to unload at bargain basement prices. After all, if you believe we are on the verge of collapse, they will be worthless then any way, right? Might as well get something out of them now.